refactoring: ServerBook class
Merge branch 'master' into ice-cream-sandwich
refactoring: introduced SimpleDialogActivity class
Merge branch 'master' into ice-cream-sandwich
code simplification + introduced MissingBookActivity
Merge branch 'master' into ice-cream-sandwich
MissingBookActivity in AndroidManifest, code cleanup
Merge branch 'master' into ice-cream-sandwich
better layout for Android 4/5
fixed possible saver thread issue + code simplification
fixed possible saver thread issue + code simplification
Merge branch 'master' into ice-cream-sandwich
hide missing book notification
hide missing book notification
Merge branch 'master' into ice-cream-sandwich
Urls in SyncData
Merge branch 'master' into ice-cream-sandwich
better missing book notification
Merge branch 'master' into ice-cream-sandwich
cleanup