moved pref text to strings.xml, ref same in preferences.xml, minor tweaks to PreferenceActivity in line with same
tweaks to preference order, strings and start to set up access in PreferenceActivity
Merge branch 'master' into preferences
fixed theme issue in folder select activity
added help dialog
reworked preference dependencies and (de)activations
integrated new preferences to UpdateAlarmsService and DeleteService, added new TimePreference