missing file preference_switchable_layout.xml
notification blacklist (close #23)
popBackStack: title confusion fixed
Merge PR #26 from @habeIchVergessen

* commit '27b5b2219e1380ba1181b6084953b9432e48b966':
  missing file preference_switchable_layout.xml
  preference improvements - Configuration inherits from PreferenceActivity - generic PreferenceFragmentLoader implemented (renamed ConfigurationFragment) - backStack support implemented - PreferenceSwitchable implemented (enables switchable PreferenceScreens. see preferences.xml) - separation of preferences for different application parts (preferences.xml, preferences_phone.xml) - preview for phone settings (a simple AlertDialog by now; configurable via xml see. preferences_phone.xml) - debug on/off via about preference (7 times tapping to switch)
Merge PR #27: popBackStack: title confusion fixed
Merge pull request #7 from durka/master

merge master
Merge remote-tracking branch 'remotes/origin/preferences' into develop

Conflicts:
	bin/HallMonitor.apk
	src/org/durka/hallmonitor/NotificationService.java