CON-1988 fix for loading assets group for skin
CON-1988 add unit tests
CON-1988 fix whitespaces in RelatedPages
CON-1988 mock AM groups in unit tests
CON-1988 fix strict check in AM and make Venus strict skin
Merge pull request #5191 from Wikia/CON-1988

CON-1988 fix for loading assets group for skin