Gradle update for Android Studio 1.0

This updates the gradle configuration to support AS 1.0. It also removes
the proguard config as runProguard is not longer available (is now
"minifyEnabled") and it was disabled anyway.
Add statusbar color for Android 5 and simplify statusbar coloring

This adds a darker version of the Actionbar color for the statusbar on
Android 5 and also simplifies setting the actionbar color.
Don't capitalize the user status string

This can be grammatically wrong (e. g. in german).
Merge pull request #287 from d-sko/lolipop_statusbar

Add statusbar color for Android 5 and simplify statusbar coloring
Merge pull request #288 from d-sko/don't_capitalize

Don't capitalize the user status string
Merge pull request #286 from d-sko/gradle_update

Gradle update for Android Studio 1.0
Remove deprecated screen width method (IGF)