Added Cordova 2.9.1 platform builds and removed old 2.7.0 builds
Updated default Cordova version number and adjusted for WindowsPhone only using a single Cordova build.
Merge pull request #32 from enyojs/ANG-503-jasonrobitaille

ANG-503: Cordova 2.9.1 for webOS

Reviewed-By: Ben Combee (ben.combee@lge.com)