title: Angular 2 - tsconfig outDir
body: <p>I'm currently developing an Angular2 application and I'm facing the following problem - I have some unit tests in my project and I don't want them to be sent to the /dist folder along side with my other code. My project structure is as follows: </p>
  
  <pre><code>dist/
   -app (compiled from src/app)
   -test (compiled from src/test)
  src/
   -app
   -test
  </code></pre>
  
  <p>Now, using the "outDir" in my tsconfig.json I'm compiling all .js files to the /dist directory. What I want to do is simply compile all app/ ts files and send them to the /dist directory, but keep the compiled .js files from my /test directory there. It should look like this : </p>
  
  <pre><code>dist/
   -app (compiled from src/app)
  src/
   -app
   -test ( all compiled js files remain here )
  </code></pre>
  
  <p>Any idea? </p>
  
  <p>Thanks</p>