update info icon
some additional modifications
small fixes
first public alpha
Merge branch 'androidl' of github.com:yanniks/yanniksdeapp-android into androidl

Conflicts:
	app/src/main/res/values-de/strings.xml
support for older Android versions, 4.2a2
add RateMeMaybe
update RateMeMaybe revision
update settings.gradle
add Makefile
update gitignore and Makefile
update RateMeMaybe
update library, don't always show rate me maybe
update ShowcaseView for KitKat design
Android 5.0 support - version 4.2