Update strings.xml

adapted language file "German / Deutsch" for Version 1.9.x ALPHA | BETA | RC!

Note:
ll 23 & 24: renamed categories to fit into filter context
Merge pull request #572 from 28Black/patch-12

adapted language file "German / Deutsch" for Version 1.9.x ALPHA | BETA | RC!
Improve logging a bit
Updated & improved strings translation
Improved translation
Merge pull request #573 from ngonchan/master

Updated & improved translation.
Updated changelog
Updated Portuguese translation
Update strings.xml

adapted language file "German / Deutsch" for Version 1.9.x ALPHA | BETA | RC!
Merge pull request #574 from 28Black/patch-13

Update strings.xml
Fixed exporting dangerous function exceptions
Updated Simplified Chinese translation
Updated Japanese Translation
Merge pull request #579 from LazyZhu/master

Updated Simplified Chinese translation
Merge pull request #580 from WedyDQ10/patch-16

Updated Japanese Translation
Updated changelog
Updated Arabic translation (log,filter_used,filter_internet,filter_restricted)
Merge pull request #581 from waleedhassan/patch-2

Updated Arabic translation (log,filter_used,filter_internet,filter_restr...
Added Hindi translation
Add seconds to export file name