title: Ignore Typescript Errors "property does not exist on value of type"
body: <p>In VS2013 building stops when tsc exits with code 1. This was not the case in VS2012.</p>
  
  <p>How can I run my solution while ignoring the tsc.exe error?</p>
  
  <p>I get many <code>The property 'x' does not exist on value of type 'y'</code> errors, which I want to ignore when using javascript functions.</p>