Upgrade to babel 7 (#164)

babel.config.js

@@ -0,0 +1,4 @@
+module.exports = {
+  presets: [['@babel/env', { loose: true }], '@babel/react'],
+  plugins: [['@babel/proposal-class-properties', { loose: true }]],
+}

package.json

@@ -59,19 +59,18 @@
   },
   "homepage": "https://github.com/renatorib/react-powerplug",
   "dependencies": {
-    "@babel/runtime": "7.0.0-rc.1"
+    "@babel/runtime": "^7.0.0"
   },
   "devDependencies": {
-    "@babel/core": "^7.0.0-rc.1",
-    "@babel/plugin-proposal-class-properties": "^7.0.0-rc.1",
-    "@babel/plugin-transform-modules-commonjs": "^7.0.0-rc.1",
-    "@babel/plugin-transform-runtime": "^7.0.0-rc.1",
-    "@babel/preset-env": "^7.0.0-rc.1",
-    "@babel/preset-react": "^7.0.0-rc.1",
+    "@babel/core": "^7.0.0",
+    "@babel/plugin-proposal-class-properties": "^7.0.0",
+    "@babel/plugin-transform-runtime": "^7.0.0",
+    "@babel/preset-env": "^7.0.0",
+    "@babel/preset-react": "^7.0.0",
     "@types/react": "^16.3.13",
     "all-contributors-cli": "^4.11.2",
     "babel-core": "^7.0.0-bridge.0",
-    "babel-eslint": "^9.0.0-beta.3",
+    "babel-eslint": "^9.0.0",
     "babel-jest": "^23.0.0",
     "cross-env": "^5.0.5",
     "dtslint": "^0.3.0",
@@ -91,8 +90,8 @@
     "react-dom": "^16.2.0",
     "react-test-renderer": "^16.2.0",
     "rimraf": "^2.6.1",
-    "rollup": "^0.63.4",
-    "rollup-plugin-babel": "^4.0.0-beta.8",
+    "rollup": "^0.65.0",
+    "rollup-plugin-babel": "^4.0.1",
     "rollup-plugin-node-resolve": "^3.3.0",
     "rollup-plugin-replace": "^2.0.0",
     "rollup-plugin-size-snapshot": "^0.6.1",