Minor fixes to the layout (invalid IDs)
Set target API version to 19 (Android 4.4)
Minor fixes to the backporting

Use newer APIs when available
Updated old-style build settings to target API 19
Added xxhdpi assets (API 16+)
Fixed switch text color
Fixed targetSdkVersion in the Manifest
Merge pull request #25 from rock3r/master

A couple of fixes, update API target to Android 4.4