fix(lib): upgrade devDependencies

package.json

@@ -18,23 +18,23 @@
     "semantic-release": "semantic-release pre && npm publish && semantic-release post"
   },
   "devDependencies": {
-    "babel": "^6.3.13",
-    "babel-core": "^6.1.18",
-    "babel-loader": "^6.1.0",
+    "babel": "^6.5.0",
+    "babel-core": "^6.11.0",
+    "babel-loader": "^6.2.0",
     "babel-plugin-add-module-exports": "^0.2.1",
     "babel-preset-es2015": "^6.9.0",
-    "chai": "^3.4.1",
+    "chai": "^3.5.0",
     "coffee-script": "^1.10.0",
     "commitizen": "^2.8.2",
     "cz-conventional-changelog": "^1.1.6",
-    "eslint": "^3.0.1",
+    "eslint": "^3.1.1",
     "mocha": "^2.5.3",
-    "mocha-webpack": "^0.4.0",
+    "mocha-webpack": "^0.5.0",
     "semantic-release": "^4.3.5",
     "semantic-release-cli": "^1.4.1",
     "webpack": "^1.13.1",
     "webpack-node-externals": "^1.2.0",
-    "yargs": "^4.7.1"
+    "yargs": "^4.8.1"
   },
   "repository": {
     "type": "git",