title: Angular 2 Multiple modules with names that only differ in casing
body: <p>The following warning occurs during compilation:</p>
  
  <blockquote>
    <p>WARNING in ./src/app/state/actions/userClass.ts There are multiple
    modules with names that only differ in casing. This can lead to
    unexpected behavior when compiling on a filesystem with other
    case-semantic. Use equal casing. Compare these module identifiers:
    * /Users/smp/Projects/training3/node_modules/@angularclass/hmr-loader/index.js!/Users/smp/Projects/training3/node_modules/awesome-typescript-loader/dist/entry.js?{configFileName:
    "tsconfig.webpack.json"}!/Users/smp/Projects/training3/node_modules/angular2-template-loader/index.js!/Users/smp/Projects/training3/node_modules/angular-router-loader/src/index.js?loader=system&amp;genDir=compiled&amp;aot=false!/Users/smp/Projects/training3/src/app/state/actions/UserClass.ts
        Used by 1 module(s), i. e.
        /Users/smp/Projects/training3/node_modules/@angularclass/hmr-loader/index.js!/Users/smp/Projects/training3/node_modules/awesome-typescript-loader/dist/entry.js?{configFileName:
    "tsconfig.webpack.json"}!/Users/smp/Projects/training3/node_modules/angular2-template-loader/index.js!/Users/smp/Projects/training3/node_modules/angular-router-loader/src/index.js?loader=system&amp;genDir=compiled&amp;aot=false!/Users/smp/Projects/training3/src/app/features/portal/content/tabs/userclasses/userclasses.component.ts
    * /Users/smp/Projects/training3/node_modules/@angularclass/hmr-loader/index.js!/Users/smp/Projects/training3/node_modules/awesome-typescript-loader/dist/entry.js?{configFileName:
    "tsconfig.webpack.json"}!/Users/smp/Projects/training3/node_modules/angular2-template-loader/index.js!/Users/smp/Projects/training3/node_modules/angular-router-loader/src/index.js?loader=system&amp;genDir=compiled&amp;aot=false!/Users/smp/Projects/training3/src/app/state/actions/userClass.ts
        Used by 3 module(s), i. e.
        /Users/smp/Projects/training3/node_modules/@angularclass/hmr-loader/index.js!/Users/smp/Projects/training3/node_modules/awesome-typescript-loader/dist/entry.js?{configFileName:
    "tsconfig.webpack.json"}!/Users/smp/Projects/training3/node_modules/angular2-template-loader/index.js!/Users/smp/Projects/training3/node_modules/angular-router-loader/src/index.js?loader=system&amp;genDir=compiled&amp;aot=false!/Users/smp/Projects/training3/src/app/state/effects/userClass.ts</p>
  </blockquote>