skins/Venus.php: remove trailing PHP tag
VenusController: code cleanup

* add hints for IDE
* consistent methods naming when calling App::renderView
* fix a typo in calls to AssetsManager::checkAssetUrlForSkin
VenusController: we can not be consistent here :(
Merge pull request #5049 from Wikia/venus-code-cleanup

Venus: controller's code cleanup
Venus: proof of concept - SASS concatenation
Oasis: we longer need to support CSS with media set to "print"
WikiaSkin: introduce getStylesWithCombinedSASS method and use it in Venus
WikiaSkin::getStylesWithCombinedSASS - code cleanup
getStylesWithCombinedSASS: update $sassFiles parameter via a reference
Oasis: use getStylesWithCombinedSASS method
WikiaMobile: use Wikia::getStylesWithCombinedSASS and make one instead of four SASS requests
WikiaSkin: create a single AssetsManager instance
WikiaSkin: add a unit test
WikiaSKinTest: make it pass when run in a suite
Remove debug code
Merge pull request #5052 from Wikia/con-1487-support-concatenation-of-sass-files

CON-1487: generic support for concatenation of SASS files
Merge remote-tracking branch 'origin/CON-NewArticle' into CON-1788