MOB-238 JS side, to be added after php side
MOB-238 feedback from code review
MOB-238 fixing whitespace
DAR-1263: Bug fix for Achievments visual regression
CE-294: Fix hardcoded & incorrectly memcached messages in Monobook
CE-294: Fix hardcoded messages for Special:PartnerFeed
CE-294: Fix hardcoded messages in Special:Videos
CE-294: Fix hardcoded messages in Special:Statistics
CE-294: Fix hardcoded messages in Special:WantedPages
CE-294: remove misplaced semicolon
DAR-1263: Change a way for calculation right popovers.
Merge branch 'dev' into responsive-layout-regressions
Merge branch 'responsive-layout-regressions' into DAR-1263
DAR-1263: cleanup.
DAR-1263: no end of line comments
DAR-1263: more cleanup.
DAR-1263: simplify resize logic.
DAR-1152: prevent toolbar from overlapping expand toggle.
CE-294: use wfMessage()->escaped() for raw HTML
DAR-535, fix special videos styles for liquid layout