Merge pull request #163 from MaDill/master

Changed German translation
include some graphical modifications from BakeRolls
new icon
fix possible NPE (Google, seriously, why do I need to do this?)
v1.6.4
Changed the summary line of the RingtonePreference to show the name of the current ringtone.
add default english translation everywhere instead of an empty string
Updated italian translation for ringtone None
Merge pull request #169 from Urban82/master

Updated italian translation for ringtone None
Updated czech translation for ringtone None
Update Korean translation
Merge pull request #171 from changwoo/master

Update Korean translation
Merge pull request #170 from svetlemodry/master

Updated czech translation for ringtone None
fix invisible scrollbar
update gradle file
start the service when entering into a loading entry
v1.6.5
improve play store banner
improve play store banner
initial Material Design support (+ end of official Eclipse support)