Update strings.xml

Translated: <string name="menu_applications">Apps für Zugriff freigeben</string>
Renamed a few menu entries

All (main/app views) -> Toggle restrictions
All (usage view) -> Toggle filter
Usage -> Usage data
Merge pull request #774 from 28Black/patch-25

Update strings.xml
Merge pull request #775 from jpeg729/menu_items

Renamed a few menu entries
Add missing translations
Updated Arabic translation
Merge pull request #776 from waleedhassan/patch-5

Updated Arabic translation
Update changelog
Fix category all
Draw border around application icons in main list
1.10.16 test
Draw border around application icon in application details view
Reduce icon border size
Translated new strings.
 Modified to prevent dual XPrivacy instance inside Android task switcher.
Updated Slovak translation
Updated Slovak translation
Merge pull request #779 from pylerSM/patch-7

Updated Slovak translation
Updated changelog
Removed not needed FLAG_ACTIVITY_CLEAR_TOP