copying image sprite.png from HubsV1 to V2, changing css accordingly; copying wikiamobile css from V1 to V2, changing AssetsManager/config.php accordingly
Removed WikiaHubs directory (HubsV1).
set subpageTitle equal to tabs title - it's currently valid for en, de, fr and es wiki
MAIN-139: Fix for creating all Chinese wiki in 'zh', despite currently used Chinese language variant.
Since we don't have wgEnableWikiaHubsExt, remove all stuff depending on it.
support passing parameters between WAM pages
missed this line - removing
cleanup after removing HubsV1 code
cleanup of hooks
fix typo
make more readable
mov squash into separate function
Revert "cleanup of hooks"

This reverts commit a36f32dbe528c7b812b4767af220e66050341ef8.
remove obsolete function
VID-383 Blocked uses can add video via <youtube> tags
VID-383 Use $app rather than $this
PLA-390 refactor SearchAbTests.js and add some unit tests
PLA-390 cosmetic changes
DAR-735 Removed '?redirect=no'
It is no longer needed after changing of default landing page
PLA-398 introduce methodology for exposing thumbnail html via imageserving