- DialogFeedback/DialogRateMe
	- they are now saving and restoring their state => no crashes on screen time out/screen rotation/activity recreation
	- button click callback is optional, the parent activity has to handle it => therefore, I renamed the inner callback function to onHandleRateMeAction, so that it's more clear in the parent activity, what the call back does
- string resources prefixed with rate-me
- DialogFeedback extended, so that it uses the button and title colors as well
- RateMeDialogTimer
	- removed constructor and added the two parameters to the static shouldShowRateDialog function
	- onStart only increases launch time if activity was created, not on screen rotation or activity recreation
removed exception test from DialogFeedback
corrected source code formatting,
corrected setShowOKButtonByDefault,
support for no icon (id <= 0)
Merge pull request #58 from MichaelFlisar/master

Fixes/Improvements/Adaptions