diff --git a/package-lock.json b/package-lock.json
index d906efe..71682a8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -391,6 +391,12 @@
         "@types/yargs": "^12.0.9"
       }
     },
+    "@tootallnate/once": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@tootallnate/once/-/once-1.1.2.tgz",
+      "integrity": "sha512-RbzJvlNzmRq5c3O09UipeuXno4tA1FE6ikOjxZK0tuxVv3412l64l5t1W5pj4+rJq9vpkm/kwiR07aZXnsKPxw==",
+      "dev": true
+    },
     "@types/babel__core": {
       "version": "7.1.2",
       "resolved": "https://registry.npmjs.org/@types/babel__core/-/babel__core-7.1.2.tgz",
@@ -566,12 +572,29 @@
       "dev": true
     },
     "agent-base": {
-      "version": "4.3.0",
-      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.3.0.tgz",
-      "integrity": "sha512-salcGninV0nPrwpGNn4VTXBb1SOuXQBiqbrNXoeizJsHrsL6ERFM2Ne3JUSBWRE6aeNJI2ROP/WEEIDUiDe3cg==",
+      "version": "6.0.2",
+      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-6.0.2.tgz",
+      "integrity": "sha512-RZNwNclF7+MS/8bDg70amg32dyeZGZxiDuQmZxKLAlQjr3jGyLx+4Kkk58UO7D2QdgFIQCovuSuZESne6RG6XQ==",
       "dev": true,
       "requires": {
-        "es6-promisify": "^5.0.0"
+        "debug": "4"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "4.3.4",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",
+          "integrity": "sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ==",
+          "dev": true,
+          "requires": {
+            "ms": "2.1.2"
+          }
+        },
+        "ms": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+          "dev": true
+        }
       }
     },
     "ajv": {
@@ -648,7 +671,7 @@
     "argv": {
       "version": "0.0.2",
       "resolved": "https://registry.npmjs.org/argv/-/argv-0.0.2.tgz",
-      "integrity": "sha1-7L0W+JSbFXGDcRsb2jNPN4QBhas=",
+      "integrity": "sha512-dEamhpPEwRUBpLNHeuCm/v+g0anFByHahxodVO/BbAarHVBBg2MccCwf9K+o1Pof+2btdnkJelYVUWjW/VrATw==",
       "dev": true
     },
     "arr-diff": {
@@ -1110,16 +1133,28 @@
       "dev": true
     },
     "codecov": {
-      "version": "3.5.0",
-      "resolved": "https://registry.npmjs.org/codecov/-/codecov-3.5.0.tgz",
-      "integrity": "sha512-/OsWOfIHaQIr7aeZ4pY0UC1PZT6kimoKFOFYFNb6wxo3iw12nRrh+mNGH72rnXxNsq6SGfesVPizm/6Q3XqcFQ==",
+      "version": "3.8.3",
+      "resolved": "https://registry.npmjs.org/codecov/-/codecov-3.8.3.tgz",
+      "integrity": "sha512-Y8Hw+V3HgR7V71xWH2vQ9lyS358CbGCldWlJFR0JirqoGtOoas3R3/OclRTvgUYFK29mmJICDPauVKmpqbwhOA==",
       "dev": true,
       "requires": {
-        "argv": "^0.0.2",
-        "ignore-walk": "^3.0.1",
-        "js-yaml": "^3.13.1",
-        "teeny-request": "^3.11.3",
-        "urlgrey": "^0.4.4"
+        "argv": "0.0.2",
+        "ignore-walk": "3.0.4",
+        "js-yaml": "3.14.1",
+        "teeny-request": "7.1.1",
+        "urlgrey": "1.0.0"
+      },
+      "dependencies": {
+        "js-yaml": {
+          "version": "3.14.1",
+          "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.14.1.tgz",
+          "integrity": "sha512-okMH7OXXJ7YrN9Ok3/SXrnu4iX9yOk+25nqX4imS2npuvTYDmo/QEZoqwZkYaIDk3jVvBOTOIEgEhaLOynBS9g==",
+          "dev": true,
+          "requires": {
+            "argparse": "^1.0.7",
+            "esprima": "^4.0.0"
+          }
+        }
       }
     },
     "collection-visit": {
@@ -1482,21 +1517,6 @@
       "integrity": "sha512-Um/+FxMr9CISWh0bi5Zv0iOD+4cFh5qLeks1qhAopKVAJw3drgKbKySikp7wGhDL0HPeaja0P5ULZrxLkniUVg==",
       "dev": true
     },
-    "es6-promise": {
-      "version": "4.2.8",
-      "resolved": "https://registry.npmjs.org/es6-promise/-/es6-promise-4.2.8.tgz",
-      "integrity": "sha512-HJDGx5daxeIvxdBxvG2cb9g4tEvwIk3i8+nhX0yGrYmZUzbkdg8QbDevheDB8gd0//uPj4c1EQua8Q+MViT0/w==",
-      "dev": true
-    },
-    "es6-promisify": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/es6-promisify/-/es6-promisify-5.0.0.tgz",
-      "integrity": "sha1-UQnWLz5W6pZ8S2NQWu8IKRyKUgM=",
-      "dev": true,
-      "requires": {
-        "es6-promise": "^4.0.3"
-      }
-    },
     "escape-string-regexp": {
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
@@ -1741,6 +1761,23 @@
       "integrity": "sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc=",
       "dev": true
     },
+    "fast-url-parser": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/fast-url-parser/-/fast-url-parser-1.1.3.tgz",
+      "integrity": "sha512-5jOCVXADYNuRkKFzNJ0dCCewsZiYo0dz8QNYljkOpFC6r2U4OBmKtvm/Tsuh4w1YYdDqDb31a8TVhBJ2OJKdqQ==",
+      "dev": true,
+      "requires": {
+        "punycode": "^1.3.2"
+      },
+      "dependencies": {
+        "punycode": {
+          "version": "1.4.1",
+          "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.4.1.tgz",
+          "integrity": "sha512-jmYNElW7yvO7TV33CjSmvSiE2yco3bV2czu/OzDKdMNVZQWfxCblURLhf+47syQRBntjfLdd/H0egrzIG+oaFQ==",
+          "dev": true
+        }
+      }
+    },
     "fb-watchman": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/fb-watchman/-/fb-watchman-2.0.0.tgz",
@@ -1878,7 +1915,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -1899,12 +1937,14 @@
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -1919,17 +1959,20 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -2046,7 +2089,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -2058,6 +2102,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -2072,6 +2117,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
@@ -2079,12 +2125,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.3.5",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.2",
             "yallist": "^3.0.0"
@@ -2103,6 +2151,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -2183,7 +2232,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -2195,6 +2245,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -2280,7 +2331,8 @@
         "safe-buffer": {
           "version": "5.1.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -2316,6 +2368,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -2335,6 +2388,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -2378,12 +2432,14 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },
@@ -2575,6 +2631,34 @@
         "whatwg-encoding": "^1.0.1"
       }
     },
+    "http-proxy-agent": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/http-proxy-agent/-/http-proxy-agent-4.0.1.tgz",
+      "integrity": "sha512-k0zdNgqWTGA6aeIRVpvfVob4fL52dTfaehylg0Y4UvSySvOq/Y+BOyPrgpUrA7HylqvU8vIZGsRuXmspskV0Tg==",
+      "dev": true,
+      "requires": {
+        "@tootallnate/once": "1",
+        "agent-base": "6",
+        "debug": "4"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "4.3.4",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",
+          "integrity": "sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ==",
+          "dev": true,
+          "requires": {
+            "ms": "2.1.2"
+          }
+        },
+        "ms": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+          "dev": true
+        }
+      }
+    },
     "http-signature": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/http-signature/-/http-signature-1.2.0.tgz",
@@ -2586,22 +2670,22 @@
       }
     },
     "https-proxy-agent": {
-      "version": "2.2.1",
-      "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-2.2.1.tgz",
-      "integrity": "sha512-HPCTS1LW51bcyMYbxUIOO4HEOlQ1/1qRaFWcyxvwaqUS9TY88aoEuHUY33kuAh1YhVVaDQhLZsnPd+XNARWZlQ==",
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-5.0.1.tgz",
+      "integrity": "sha512-dFcAjpTQFgoLMzC2VwU+C/CbS7uRL0lWmxDITmqm7C+7F0Odmj6s9l6alZc6AELXhrnggM2CeWSXHGOdX2YtwA==",
       "dev": true,
       "requires": {
-        "agent-base": "^4.1.0",
-        "debug": "^3.1.0"
+        "agent-base": "6",
+        "debug": "4"
       },
       "dependencies": {
         "debug": {
-          "version": "3.2.6",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.6.tgz",
-          "integrity": "sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==",
+          "version": "4.3.4",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",
+          "integrity": "sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ==",
           "dev": true,
           "requires": {
-            "ms": "^2.1.1"
+            "ms": "2.1.2"
           }
         },
         "ms": {
@@ -2622,9 +2706,9 @@
       }
     },
     "ignore-walk": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/ignore-walk/-/ignore-walk-3.0.1.tgz",
-      "integrity": "sha512-DTVlMx3IYPe0/JJcYP7Gxg7ttZZu3IInhuEhbchuqneY9wWe5Ojy2mXLBaQFUQmo0AW2r3qG7m1mg86js+gnlQ==",
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/ignore-walk/-/ignore-walk-3.0.4.tgz",
+      "integrity": "sha512-PY6Ii8o1jMRA1z4F2hRkH/xN59ox43DavKvD3oDpfurRlOJyAHpifIwpbdv1n4jt4ov0jSpw3kQ4GhJnpBL6WQ==",
       "dev": true,
       "requires": {
         "minimatch": "^3.0.4"
@@ -3892,10 +3976,37 @@
       "dev": true
     },
     "node-fetch": {
-      "version": "2.6.0",
-      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.0.tgz",
-      "integrity": "sha512-8dG4H5ujfvFiqDmVu9fQ5bOHUC15JMjMY/Zumv26oOvvVJjM67KF8koCWIabKQ1GJIa9r2mMZscBq/TbdOcmNA==",
-      "dev": true
+      "version": "2.6.7",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.7.tgz",
+      "integrity": "sha512-ZjMPFEfVx5j+y2yF35Kzx5sF7kDzxuDj6ziH4FFbOp87zKDZNx8yExJIb05OGF4Nlt9IHFIMBkRl41VdvcNdbQ==",
+      "dev": true,
+      "requires": {
+        "whatwg-url": "^5.0.0"
+      },
+      "dependencies": {
+        "tr46": {
+          "version": "0.0.3",
+          "resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
+          "integrity": "sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw==",
+          "dev": true
+        },
+        "webidl-conversions": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
+          "integrity": "sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ==",
+          "dev": true
+        },
+        "whatwg-url": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-5.0.0.tgz",
+          "integrity": "sha512-saE57nupxk6v3HY35+jzBwYa0rKSy0XR8JSxZPwgLr7ys0IBzhGviA1/TUGJLmSVqs8pb9AnvICXEuOHLprYTw==",
+          "dev": true,
+          "requires": {
+            "tr46": "~0.0.3",
+            "webidl-conversions": "^3.0.0"
+          }
+        }
+      }
     },
     "node-int64": {
       "version": "0.4.0",
@@ -5075,6 +5186,15 @@
       "integrity": "sha1-NbCYdbT/SfJqd35QmzCQoyJr8ks=",
       "dev": true
     },
+    "stream-events": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/stream-events/-/stream-events-1.0.5.tgz",
+      "integrity": "sha512-E1GUzBSgvct8Jsb3v2X15pjzN1tYebtbLaMg+eBOUOAxgbLoSbT2NS91ckc5lJD1KfLjId+jXJRgo0qnV5Nerg==",
+      "dev": true,
+      "requires": {
+        "stubs": "^3.0.0"
+      }
+    },
     "string-length": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/string-length/-/string-length-2.0.0.tgz",
@@ -5158,6 +5278,12 @@
       "integrity": "sha1-u0P/VZim6wXYm1n80SnJgzE2Br8=",
       "dev": true
     },
+    "stubs": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/stubs/-/stubs-3.0.0.tgz",
+      "integrity": "sha512-PdHt7hHUJKxvTCgbKX9C1V/ftOcjJQgz8BZwNfV5c4B6dcGqlpelTbJ999jBGZ2jYiPAwcX5dP6oBwVlBlUbxw==",
+      "dev": true
+    },
     "supports-color": {
       "version": "5.5.0",
       "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
@@ -5198,14 +5324,24 @@
       }
     },
     "teeny-request": {
-      "version": "3.11.3",
-      "resolved": "https://registry.npmjs.org/teeny-request/-/teeny-request-3.11.3.tgz",
-      "integrity": "sha512-CKncqSF7sH6p4rzCgkb/z/Pcos5efl0DmolzvlqRQUNcpRIruOhY9+T1FsIlyEbfWd7MsFpodROOwHYh2BaXzw==",
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/teeny-request/-/teeny-request-7.1.1.tgz",
+      "integrity": "sha512-iwY6rkW5DDGq8hE2YgNQlKbptYpY5Nn2xecjQiNjOXWbKzPGUfmeUBCSQbbr306d7Z7U2N0TPl+/SwYRfua1Dg==",
       "dev": true,
       "requires": {
-        "https-proxy-agent": "^2.2.1",
-        "node-fetch": "^2.2.0",
-        "uuid": "^3.3.2"
+        "http-proxy-agent": "^4.0.0",
+        "https-proxy-agent": "^5.0.0",
+        "node-fetch": "^2.6.1",
+        "stream-events": "^1.0.5",
+        "uuid": "^8.0.0"
+      },
+      "dependencies": {
+        "uuid": {
+          "version": "8.3.2",
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+          "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==",
+          "dev": true
+        }
       }
     },
     "test-exclude": {
@@ -5548,10 +5684,13 @@
       "dev": true
     },
     "urlgrey": {
-      "version": "0.4.4",
-      "resolved": "https://registry.npmjs.org/urlgrey/-/urlgrey-0.4.4.tgz",
-      "integrity": "sha1-iS/pWWCAXoVRnxzUOJ8stMu3ZS8=",
-      "dev": true
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/urlgrey/-/urlgrey-1.0.0.tgz",
+      "integrity": "sha512-hJfIzMPJmI9IlLkby8QrsCykQ+SXDeO2W5Q9QTW3QpqZVTx4a/K7p8/5q+/isD8vsbVaFgql/gvAoQCRQ2Cb5w==",
+      "dev": true,
+      "requires": {
+        "fast-url-parser": "^1.1.3"
+      }
     },
     "use": {
       "version": "3.1.1",
diff --git a/package.json b/package.json
index 2e5fc5e..b907011 100644
--- a/package.json
+++ b/package.json
@@ -42,7 +42,7 @@
     "@types/node": "^12.0.7",
     "@types/selenium-webdriver": "4.0.0",
     "@types/sharp": "^0.22.2",
-    "codecov": "3.5.0",
+    "codecov": "3.8.3",
     "jest": "24.8.0",
     "nyc": "14.1.1",
     "prettier": "1.18.0",