[Translations] Add Serbian language
[Translations] Fix Serbian language
Merge pull request #4 from pejakm/srtr

[Translations] Add Serbian language
AppsListAdapter: Recycle views
Merge remote-tracking branch 'origin/master'
build.gradle: Remove unnecessary stuff
Cache Cleaner v1.1.8
Fix and translate locales
Change author's website URL
Cache Cleaner v1.1.9
AppsListAdapter: Remove unnecessary and unsupported code
AppsListAdapter: Improve performance

Use view holders, do not recreate on-click listener on every getView() and set stable IDs.
Update English and Slovak locales