Adds compatibility for iPhone 6 / iPhone 6 Plus

Refering to:
![screen shot 2014-10-23 at 4 16 21 pm](https://cloud.githubusercontent.com/assets/126418/4748570/c10df46a-5a73-11e4-9380-f06ebbd2805d.png)

Just added a blank LaunchScreen.xib which will be used in iOS 8. So there's no need to add Default.png's for iPhone 6 / 6 Plus. project.pbxproj got a bit mixed up due to new Xcode or Cocoapods install.

Maybe we can push out an App Store update soon...