VID-213 setting up click tracking for video-player-stats tracking
addressing feedback from code review - mostly style stuff
re-doing the mobile click source tracking so it can track embeds vs. modal.  Also removing skin-specific click source values
adding documentation
rearranging comments
some code cleanup
Merge branch 'bugid-98408' into VID-213-clicksource
adding back in layout to wikiamobile.js
reformating file page js to be wrapped with amd
Merge pull request #782 from Wikia/VID-213-clicksource

VID-213 setting up clickSource tracking for video-player-stats