title: Error importing html files as strings- unsupported extensions in typescript 2.0
body: <p>I am trying to import html files as strings in Visual Studio 2015 and am  using typescript 2.0.0. I created an ambient module declaration like this </p>
  
  <pre><code>/* import all html files as Strings */
   declare module "*.html" {
   var __html__: string;
   export default __html__;
     }
  </code></pre>
  
  <p>And in my imports</p>
  
  <pre><code>import DLATemplate from '/Template/activity/ActivityDla.html'
  @Component({
      selector: 'activities-dla',
      template: DLATemplate
  })
  </code></pre>
  
  <p>On building I get an error, tsc exited on code 2. On digging further in the build output details I get the detailed version of the error</p>
  
  <p><strong><em>TS6054:Build:File 'C:/PMLBundled/Phoenix/Phoenix_LMS/Phoenix.Web/Template/activity/ActivityDla.html' has unsupported extension. The only supported extensions are '.ts', '.tsx', '.d.ts'.</em></strong></p>
  
  <p>Did I miss something. I do not want to change my html files to a .ts extension because I will lose my intellisense and syntax highlighting in the  html templates.</p>