VID-2009 not using JSSnippets for media gallery
VID-2009 updating comment
VID-2009 only loading gallery JS if there's a gallery on the page
VID-2009 adding gallery css to oasis and lazy load galleries
VID-2009 fixing sloth to work with elements with offset top of 0 and js-beautify
whitespace
whitespace
Merge pull request #4912 from Wikia/VID-2009

VID-2009
merging dev into VideoSprint58
Merge branch 'VideoSprint58' into VID-1957

Conflicts:
	extensions/wikia/MediaGallery/MediaGalleryHooks.class.php