Merge pull request #323 from thknepper/master

german translation added
 #322 Pause for calls in remote mode
Don't ignore SIGN_IN_REQUIRED error
Don't try to recycle small size bitmaps
Use the more stringent check for cache location change
Try to make sure using the SDCard for default music location
DSub 4.5.7 Released
Remove, caused other issues
Removed third param from other strings already
Update release
improve/update german translation