Merge pull request #972 from momomok/kitkat

Update translation for Traditional Chinese (zh-rTW) (KK branch)
HeadsUp: stock behaviour extended
- show heads up for existing notifications when they get updated
- hide heads up when notification actions are clicked or notification
itself is clicked
Updated Slovak and Czech translations
Update strings.xml
Merge pull request #973 from xtrem007/kitkat

Updated Polish translation [KK]
Updated Portuguese (PT) translation
Version 3.2.4 [KK]
Updating Russian
Merge pull request #975 from gaich/patch-9

Updating Russian