Merge pull request #405 from nelenkov/dev

cleaned up authenticator a bit
Update Polish translation
Merge pull request #406 from AndyScherzinger/master

Update Polish translation
Fix error creating numerous app info rows, preventing changelog/descriptions from being updated.
Merge pull request #407 from therealdpk/dev

AppInfo page: Fix error creating numerous app info rows, preventing changelog/descript...
check for null (ContentValues.put() doesn't handle null)