chore(package): update awesome-typescript-loader to version 5.2.1

Closes #208

Author: greenkeeper[bot]

package.json

@@ -95,7 +95,7 @@
     "angular2-template-loader": "^0.6.0",
     "autodll-webpack-plugin": "^0.3.3",
     "autoprefixer": "^7.1.4",
-    "awesome-typescript-loader": "^3.2.3",
+    "awesome-typescript-loader": "^5.2.1",
     "babel-core": "^6.25.0",
     "babel-loader": "^7.1.1",
     "babel-preset-env": "^1.6.0",