refactoring: ServerBook class
Merge branch 'master' into beta
refactoring: introduced SimpleDialogActivity class
Merge branch 'master' into beta
code simplification + introduced MissingBookActivity
Merge branch 'master' into beta
MissingBookActivity in AndroidManifest, code cleanup
Merge branch 'master' into beta
fixed possible saver thread issue + code simplification
Merge branch 'master' into beta
hide missing book notification
Merge branch 'master' into beta
Urls in SyncData
Merge branch 'master' into beta
better missing book notification
Merge branch 'master' into beta
cleanup
Merge branch 'master' into beta
used MissingBookActivity
Merge branch 'master' into beta