moving to babel 7 (#34)

.babelrc

@@ -1,22 +1,9 @@
 {
   "presets": [
-    "flow",
-    ["env", { "modules": false, "loose": true }]
+    "@babel/flow",
+    ["@babel/env", {
+      "loose": true
+    }]
   ],
-  "comments": false,
-  "plugins": [
-    "transform-object-rest-spread"
-  ],
-  "env": {
-    "cjs": {
-      "plugins": [
-        "transform-es2015-modules-commonjs"
-      ]
-    },
-    "test": {
-      "plugins": [
-        "transform-es2015-modules-commonjs"
-      ]
-    }
-  }
+  "comments": false
 }

package.json

@@ -23,24 +23,23 @@
   ],
   "dependencies": {},
   "devDependencies": {
-    "babel-cli": "6.26.0",
-    "babel-core": "6.26.3",
-    "babel-eslint": "8.2.5",
-    "babel-plugin-transform-flow-strip-types": "6.22.0",
-    "babel-plugin-transform-object-rest-spread": "6.26.0",
-    "babel-preset-env": "^1.7.0",
-    "babel-preset-flow": "^6.23.0",
+    "@babel/core": "^7.0.0",
+    "@babel/preset-env": "^7.0.0",
+    "@babel/preset-flow": "^7.0.0",
+    "babel-core": "^7.0.0-bridge.0",
+    "babel-eslint": "9.0.0",
+    "babel-jest": "^23.4.2",
     "chai": "4.1.2",
     "cross-env": "^5.2.0",
-    "eslint": "5.0.1",
-    "eslint-plugin-flowtype": "^2.49.3",
-    "eslint-plugin-jest": "^21.17.0",
-    "flow-bin": "0.75.0",
-    "jest": "^23.2.0",
+    "eslint": "5.4.0",
+    "eslint-plugin-flowtype": "^2.50.0",
+    "eslint-plugin-jest": "^21.22.0",
+    "flow-bin": "0.79.1",
+    "jest": "^23.5.0",
     "rimraf": "2.6.2",
-    "rollup": "^0.62.0",
-    "rollup-plugin-babel": "^3.0.5",
-    "rollup-plugin-commonjs": "^9.1.3",
+    "rollup": "^0.65.0",
+    "rollup-plugin-babel": "^4.0.2",
+    "rollup-plugin-commonjs": "^9.1.6",
     "rollup-plugin-replace": "^2.0.0",
     "rollup-plugin-uglify": "^4.0.0"
   },

rollup.config.js

@@ -43,7 +43,7 @@ export default [
     input,
     output: {
       file: 'dist/memoize-one.esm.js',
-      format: 'es',
+      format: 'esm',
     },
     plugins: [babel()],
   },