title: Cordova build removes my /res/ -images
body: <p>Since I updated from Cordova 3.6 to 5.4.0, I am somehow losing my splash screen images at the build process.</p>
  
  <p>I have all my images in ./platforms/android/res/drawable&lt;-resolution>/</p>
  
  <p>As soon as I call <code>cordova build android --release</code> it first removes all my png files (not the folders, just the files) and then rises an error for each file missing but referenced in my config.xml.</p>