diff --git a/package-lock.json b/package-lock.json
index 4bda8ea..192ab1f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "websocket-heartbeat-miniprogram",
-  "version": "1.0.1",
+  "version": "1.0.3",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "websocket-heartbeat-miniprogram",
-      "version": "1.0.1",
+      "version": "1.0.3",
       "license": "MIT",
       "devDependencies": {
         "@babel/core": "^7.8.4",
@@ -2881,30 +2881,34 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/abbrev": {
       "version": "1.1.1",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/ansi-regex": {
       "version": "2.1.1",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "engines": {
         "node": ">=0.10.0"
       }
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/aproba": {
       "version": "1.2.0",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/are-we-there-yet": {
       "version": "1.1.5",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "delegates": "^1.0.0",
         "readable-stream": "^2.0.6"
@@ -2912,15 +2916,17 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/balanced-match": {
       "version": "1.0.0",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/brace-expansion": {
       "version": "1.1.11",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "balanced-match": "^1.0.0",
         "concat-map": "0.0.1"
@@ -2928,66 +2934,75 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/chownr": {
       "version": "1.1.3",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/code-point-at": {
       "version": "1.1.0",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "engines": {
         "node": ">=0.10.0"
       }
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/concat-map": {
       "version": "0.0.1",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/console-control-strings": {
       "version": "1.1.0",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/core-util-is": {
       "version": "1.0.2",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/debug": {
       "version": "3.2.6",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "ms": "^2.1.1"
       }
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/deep-extend": {
       "version": "0.6.0",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "engines": {
         "node": ">=4.0.0"
       }
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/delegates": {
       "version": "1.0.0",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/detect-libc": {
       "version": "1.0.3",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "Apache-2.0",
+      "optional": true,
       "bin": {
         "detect-libc": "bin/detect-libc.js"
       },
@@ -2997,24 +3012,27 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/fs-minipass": {
       "version": "1.2.7",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "minipass": "^2.6.0"
       }
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/fs.realpath": {
       "version": "1.0.0",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/gauge": {
       "version": "2.7.4",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "aproba": "^1.0.3",
         "console-control-strings": "^1.0.0",
@@ -3028,9 +3046,10 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/glob": {
       "version": "7.1.6",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "fs.realpath": "^1.0.0",
         "inflight": "^1.0.4",
@@ -3048,15 +3067,17 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/has-unicode": {
       "version": "2.0.1",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/iconv-lite": {
       "version": "0.4.24",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "safer-buffer": ">= 2.1.2 < 3"
       },
@@ -3066,18 +3087,20 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/ignore-walk": {
       "version": "3.0.3",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "minimatch": "^3.0.4"
       }
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/inflight": {
       "version": "1.0.6",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "once": "^1.3.0",
         "wrappy": "1"
@@ -3085,24 +3108,27 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/inherits": {
       "version": "2.0.4",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/ini": {
       "version": "1.3.5",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "engines": {
         "node": "*"
       }
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/is-fullwidth-code-point": {
       "version": "1.0.0",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "number-is-nan": "^1.0.0"
       },
@@ -3112,15 +3138,17 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/isarray": {
       "version": "1.0.0",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/minimatch": {
       "version": "3.0.4",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "brace-expansion": "^1.1.7"
       },
@@ -3130,15 +3158,17 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/minimist": {
       "version": "0.0.8",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/minipass": {
       "version": "2.9.0",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "safe-buffer": "^5.1.2",
         "yallist": "^3.0.0"
@@ -3146,18 +3176,20 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/minizlib": {
       "version": "1.3.3",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "minipass": "^2.9.0"
       }
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/mkdirp": {
       "version": "0.5.1",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "minimist": "0.0.8"
       },
@@ -3167,15 +3199,17 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/ms": {
       "version": "2.1.2",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/needle": {
       "version": "2.4.0",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "debug": "^3.2.6",
         "iconv-lite": "^0.4.4",
@@ -3190,9 +3224,10 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/node-pre-gyp": {
       "version": "0.14.0",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "BSD-3-Clause",
+      "optional": true,
       "dependencies": {
         "detect-libc": "^1.0.2",
         "mkdirp": "^0.5.1",
@@ -3211,9 +3246,10 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/nopt": {
       "version": "4.0.1",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "abbrev": "1",
         "osenv": "^0.1.4"
@@ -3224,24 +3260,27 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/npm-bundled": {
       "version": "1.1.1",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "npm-normalize-package-bin": "^1.0.1"
       }
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/npm-normalize-package-bin": {
       "version": "1.0.1",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/npm-packlist": {
       "version": "1.4.7",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "ignore-walk": "^3.0.1",
         "npm-bundled": "^1.0.1"
@@ -3249,9 +3288,10 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/npmlog": {
       "version": "4.1.2",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "are-we-there-yet": "~1.1.2",
         "console-control-strings": "~1.1.0",
@@ -3261,54 +3301,60 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/number-is-nan": {
       "version": "1.0.1",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "engines": {
         "node": ">=0.10.0"
       }
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/object-assign": {
       "version": "4.1.1",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "engines": {
         "node": ">=0.10.0"
       }
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/once": {
       "version": "1.4.0",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "wrappy": "1"
       }
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/os-homedir": {
       "version": "1.0.2",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "engines": {
         "node": ">=0.10.0"
       }
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/os-tmpdir": {
       "version": "1.0.2",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "engines": {
         "node": ">=0.10.0"
       }
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/osenv": {
       "version": "0.1.5",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "os-homedir": "^1.0.0",
         "os-tmpdir": "^1.0.0"
@@ -3316,24 +3362,27 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/path-is-absolute": {
       "version": "1.0.1",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "engines": {
         "node": ">=0.10.0"
       }
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/process-nextick-args": {
       "version": "2.0.1",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/rc": {
       "version": "1.2.8",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "(BSD-2-Clause OR MIT OR Apache-2.0)",
+      "optional": true,
       "dependencies": {
         "deep-extend": "^0.6.0",
         "ini": "~1.3.0",
@@ -3346,15 +3395,17 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/rc/node_modules/minimist": {
       "version": "1.2.0",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/readable-stream": {
       "version": "2.3.6",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "core-util-is": "~1.0.0",
         "inherits": "~2.0.3",
@@ -3367,9 +3418,10 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/rimraf": {
       "version": "2.7.1",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "glob": "^7.1.3"
       },
@@ -3379,57 +3431,65 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/safe-buffer": {
       "version": "5.1.2",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/safer-buffer": {
       "version": "2.1.2",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/sax": {
       "version": "1.2.4",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/semver": {
       "version": "5.7.1",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "bin": {
         "semver": "bin/semver"
       }
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/set-blocking": {
       "version": "2.0.0",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/signal-exit": {
       "version": "3.0.2",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/string_decoder": {
       "version": "1.1.1",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "safe-buffer": "~5.1.0"
       }
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/string-width": {
       "version": "1.0.2",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "code-point-at": "^1.0.0",
         "is-fullwidth-code-point": "^1.0.0",
@@ -3441,9 +3501,10 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/strip-ansi": {
       "version": "3.0.1",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "dependencies": {
         "ansi-regex": "^2.0.0"
       },
@@ -3453,18 +3514,20 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/strip-json-comments": {
       "version": "2.0.1",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "MIT",
+      "optional": true,
       "engines": {
         "node": ">=0.10.0"
       }
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/tar": {
       "version": "4.4.13",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "chownr": "^1.1.1",
         "fs-minipass": "^1.2.5",
@@ -3480,30 +3543,34 @@
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/util-deprecate": {
       "version": "1.0.2",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "MIT"
+      "license": "MIT",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/wide-align": {
       "version": "1.1.3",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
       "license": "ISC",
+      "optional": true,
       "dependencies": {
         "string-width": "^1.0.2 || 2"
       }
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/wrappy": {
       "version": "1.0.2",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/fsevents/node_modules/yallist": {
       "version": "3.1.1",
-      "extraneous": true,
+      "dev": true,
       "inBundle": true,
-      "license": "ISC"
+      "license": "ISC",
+      "optional": true
     },
     "node_modules/chokidar/node_modules/glob-parent": {
       "version": "3.1.0",
@@ -12400,9 +12467,9 @@
       }
     },
     "node_modules/terser": {
-      "version": "4.6.3",
-      "resolved": "https://registry.npmjs.org/terser/-/terser-4.6.3.tgz",
-      "integrity": "sha512-Lw+ieAXmY69d09IIc/yqeBqXpEQIpDGZqT34ui1QWXIUpR2RjbqEkT8X7Lgex19hslSqcWM5iMN2kM11eMsESQ==",
+      "version": "4.8.1",
+      "resolved": "https://registry.npmjs.org/terser/-/terser-4.8.1.tgz",
+      "integrity": "sha512-4GnLC0x667eJG0ewJTa6z/yXrbLGv80D9Ru6HIpCQmO+Q4PfEtBFi0ObSckqwL6VyQv/7ENJieXHo2ANmdQwgw==",
       "dev": true,
       "dependencies": {
         "commander": "^2.20.0",
@@ -16334,22 +16401,26 @@
             "abbrev": {
               "version": "1.1.1",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "ansi-regex": {
               "version": "2.1.1",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "aproba": {
               "version": "1.2.0",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "are-we-there-yet": {
               "version": "1.1.5",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "delegates": "^1.0.0",
                 "readable-stream": "^2.0.6"
@@ -16358,12 +16429,14 @@
             "balanced-match": {
               "version": "1.0.0",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "brace-expansion": {
               "version": "1.1.11",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "balanced-match": "^1.0.0",
                 "concat-map": "0.0.1"
@@ -16372,32 +16445,38 @@
             "chownr": {
               "version": "1.1.3",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "code-point-at": {
               "version": "1.1.0",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "concat-map": {
               "version": "0.0.1",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "console-control-strings": {
               "version": "1.1.0",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "core-util-is": {
               "version": "1.0.2",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "debug": {
               "version": "3.2.6",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "ms": "^2.1.1"
               }
@@ -16405,22 +16484,26 @@
             "deep-extend": {
               "version": "0.6.0",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "delegates": {
               "version": "1.0.0",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "detect-libc": {
               "version": "1.0.3",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "fs-minipass": {
               "version": "1.2.7",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "minipass": "^2.6.0"
               }
@@ -16428,12 +16511,14 @@
             "fs.realpath": {
               "version": "1.0.0",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "gauge": {
               "version": "2.7.4",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "aproba": "^1.0.3",
                 "console-control-strings": "^1.0.0",
@@ -16448,7 +16533,8 @@
             "glob": {
               "version": "7.1.6",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "fs.realpath": "^1.0.0",
                 "inflight": "^1.0.4",
@@ -16461,12 +16547,14 @@
             "has-unicode": {
               "version": "2.0.1",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "iconv-lite": {
               "version": "0.4.24",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "safer-buffer": ">= 2.1.2 < 3"
               }
@@ -16474,7 +16562,8 @@
             "ignore-walk": {
               "version": "3.0.3",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "minimatch": "^3.0.4"
               }
@@ -16482,7 +16571,8 @@
             "inflight": {
               "version": "1.0.6",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "once": "^1.3.0",
                 "wrappy": "1"
@@ -16491,17 +16581,20 @@
             "inherits": {
               "version": "2.0.4",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "ini": {
               "version": "1.3.5",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "is-fullwidth-code-point": {
               "version": "1.0.0",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "number-is-nan": "^1.0.0"
               }
@@ -16509,12 +16602,14 @@
             "isarray": {
               "version": "1.0.0",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "minimatch": {
               "version": "3.0.4",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "brace-expansion": "^1.1.7"
               }
@@ -16522,12 +16617,14 @@
             "minimist": {
               "version": "0.0.8",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "minipass": {
               "version": "2.9.0",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "safe-buffer": "^5.1.2",
                 "yallist": "^3.0.0"
@@ -16536,7 +16633,8 @@
             "minizlib": {
               "version": "1.3.3",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "minipass": "^2.9.0"
               }
@@ -16544,7 +16642,8 @@
             "mkdirp": {
               "version": "0.5.1",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "minimist": "0.0.8"
               }
@@ -16552,12 +16651,14 @@
             "ms": {
               "version": "2.1.2",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "needle": {
               "version": "2.4.0",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "debug": "^3.2.6",
                 "iconv-lite": "^0.4.4",
@@ -16567,7 +16668,8 @@
             "node-pre-gyp": {
               "version": "0.14.0",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "detect-libc": "^1.0.2",
                 "mkdirp": "^0.5.1",
@@ -16584,7 +16686,8 @@
             "nopt": {
               "version": "4.0.1",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "abbrev": "1",
                 "osenv": "^0.1.4"
@@ -16593,7 +16696,8 @@
             "npm-bundled": {
               "version": "1.1.1",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "npm-normalize-package-bin": "^1.0.1"
               }
@@ -16601,12 +16705,14 @@
             "npm-normalize-package-bin": {
               "version": "1.0.1",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "npm-packlist": {
               "version": "1.4.7",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "ignore-walk": "^3.0.1",
                 "npm-bundled": "^1.0.1"
@@ -16615,7 +16721,8 @@
             "npmlog": {
               "version": "4.1.2",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "are-we-there-yet": "~1.1.2",
                 "console-control-strings": "~1.1.0",
@@ -16626,17 +16733,20 @@
             "number-is-nan": {
               "version": "1.0.1",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "object-assign": {
               "version": "4.1.1",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "once": {
               "version": "1.4.0",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "wrappy": "1"
               }
@@ -16644,17 +16754,20 @@
             "os-homedir": {
               "version": "1.0.2",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "os-tmpdir": {
               "version": "1.0.2",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "osenv": {
               "version": "0.1.5",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "os-homedir": "^1.0.0",
                 "os-tmpdir": "^1.0.0"
@@ -16663,17 +16776,20 @@
             "path-is-absolute": {
               "version": "1.0.1",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "process-nextick-args": {
               "version": "2.0.1",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "rc": {
               "version": "1.2.8",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "deep-extend": "^0.6.0",
                 "ini": "~1.3.0",
@@ -16684,14 +16800,16 @@
                 "minimist": {
                   "version": "1.2.0",
                   "bundled": true,
-                  "extraneous": true
+                  "dev": true,
+                  "optional": true
                 }
               }
             },
             "readable-stream": {
               "version": "2.3.6",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "core-util-is": "~1.0.0",
                 "inherits": "~2.0.3",
@@ -16705,7 +16823,8 @@
             "rimraf": {
               "version": "2.7.1",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "glob": "^7.1.3"
               }
@@ -16713,37 +16832,44 @@
             "safe-buffer": {
               "version": "5.1.2",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "safer-buffer": {
               "version": "2.1.2",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "sax": {
               "version": "1.2.4",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "semver": {
               "version": "5.7.1",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "set-blocking": {
               "version": "2.0.0",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "signal-exit": {
               "version": "3.0.2",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "string_decoder": {
               "version": "1.1.1",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "safe-buffer": "~5.1.0"
               }
@@ -16751,7 +16877,8 @@
             "string-width": {
               "version": "1.0.2",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "code-point-at": "^1.0.0",
                 "is-fullwidth-code-point": "^1.0.0",
@@ -16761,7 +16888,8 @@
             "strip-ansi": {
               "version": "3.0.1",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "ansi-regex": "^2.0.0"
               }
@@ -16769,12 +16897,14 @@
             "strip-json-comments": {
               "version": "2.0.1",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "tar": {
               "version": "4.4.13",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "chownr": "^1.1.1",
                 "fs-minipass": "^1.2.5",
@@ -16788,12 +16918,14 @@
             "util-deprecate": {
               "version": "1.0.2",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "wide-align": {
               "version": "1.1.3",
               "bundled": true,
-              "extraneous": true,
+              "dev": true,
+              "optional": true,
               "requires": {
                 "string-width": "^1.0.2 || 2"
               }
@@ -16801,12 +16933,14 @@
             "wrappy": {
               "version": "1.0.2",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             },
             "yallist": {
               "version": "3.1.1",
               "bundled": true,
-              "extraneous": true
+              "dev": true,
+              "optional": true
             }
           }
         },
@@ -24191,9 +24325,9 @@
       }
     },
     "terser": {
-      "version": "4.6.3",
-      "resolved": "https://registry.npmjs.org/terser/-/terser-4.6.3.tgz",
-      "integrity": "sha512-Lw+ieAXmY69d09IIc/yqeBqXpEQIpDGZqT34ui1QWXIUpR2RjbqEkT8X7Lgex19hslSqcWM5iMN2kM11eMsESQ==",
+      "version": "4.8.1",
+      "resolved": "https://registry.npmjs.org/terser/-/terser-4.8.1.tgz",
+      "integrity": "sha512-4GnLC0x667eJG0ewJTa6z/yXrbLGv80D9Ru6HIpCQmO+Q4PfEtBFi0ObSckqwL6VyQv/7ENJieXHo2ANmdQwgw==",
       "dev": true,
       "requires": {
         "commander": "^2.20.0",