Update res/values-de/strings.xml

Added `preferences_advanced_sms_category`, `preferences_advanced_root_category`, `preferences_advanced_enable_abort_broadcast` and `preferences_advanced_enable_abort_broadcast_summary`
Update res/values-it/strings.xml

last adds translated (from 2cafcece06... to 9b34dadf...)
Merge pull request #41 from pgschk/german-translation

Update res/values-de/strings.xml
Merge pull request #42 from ezio84/patch-4

Update res/values-it/strings.xml
Advanced: Fix recently introduced bug
Tracker: Intercept Back button, destroy only when handler is disabled
res: Fix translations
res: Stringify moar