fix(deps): babel-polyfill

Author: claudiocro

package.json

@@ -61,6 +61,7 @@
     "babel-plugin-add-module-exports": "^1.0.0",
     "babel-plugin-istanbul": "^5.1.0",
     "babel-plugin-transform-object-rest-spread": "^6.26.0",
+    "babel-polyfill": "^6.26.0",
     "chai": "^3.5.0",
     "coveralls": "^3.0.4",
     "cross-env": "^3.0.0",
@@ -88,9 +89,9 @@
     "karma-sourcemap-loader": "^0.3.7",
     "karma-webpack": "^4.0.2",
     "mkdirp": "^0.5.1",
-    "mocha": "^3.2.0",
+    "mocha": "^6.1.4",
     "mocha-lcov-reporter": "^1.3.0",
-    "mocha-loader": "^1.1.1",
+    "mocha-loader": "^2.0.1",
     "ncp": "^2.0.0",
     "phantomjs-prebuilt": "^2.1.14",
     "rimraf": "^2.6.1",