title: VS Code Auto Indent / Code Formatting changes single quotation marks to double
body: <p>I am using VS Code 1.17.2 with the following extensions installed (Unfortuanetly i can't link them since i don't have enough reputation): </p>
  
  <ul>
  <li>Angular 5 Snippets - TypeScript, Html, Angular Material, ngRx, RxJS &amp; Flex Layout</li>
  <li>Angular Essentials</li>
  <li>Angular Language Service</li>
  <li>Angular v5 TypeScript Snippets</li>
  <li>angular2-inline</li>
  <li>Auto Import</li>
  <li>Debugger for Chrome</li>
  <li>EditorConfig for VS Code (since Angular Essentials depends on it)</li>
  <li>HTML Snippets</li>
  <li>IntelliSense for CSS class names</li>
  <li>Material Icon Theme</li>
  <li>Path Intellisense</li>
  <li>PHP IntelliSense</li>
  <li>Prettier - Javascript formatter</li>
  <li>TSLint</li>
  <li>Visual Studio Team Services</li>
  <li>vscode-icons</li>
  <li>Winter Is Coming Theme</li>
  </ul>
  
  <p>When auto formatting a TypeScript file (Shift + Alt + F), it does the indent right, but it also changes all single quotation marks to double quotation marks, which makes TSLint complain. I am pretty certain the auto indent is not supposed to do that and it really is annoying. </p>
  
  <p>Any help would be greatly appreciated.</p>