Changed AlertDialog to DialogFragment using support library

- Changed AlertDialog to DialogFragment using support library
- DialogFragment recreates on configuration change and color is
retrieved from saved state
- Software layer is set on Android 3+ in AmbilWarnaKotak due to color
blending issue
- Adjusted AmbilWarna DialogFragment for bigger screens
- On Android 3+ user can now set Theme_Holo_Dialog or
Theme_Holo_Light_Dialog on AmbilWarna DialogFragment