Normalize joinData -> data
Normalize leavingUserName -> name, drop unnecessary data in part events
DAR-36 Tracking for tabs in Gallery Tool.
DAR-36 More tracking for Gallery Tool.
Merge branch 'dev' into DAR-36
DAR-36 More tracking for the Gallery Tool.
Merge branch 'dev' into DAR-36
DAR-36: implement the rest of the VET tracking.
DAR-36 More tracking for the Gallery Tool.
DAR-88: prevent image size events from firing twice.
DAR-36 Tracking for Slideshow Tool.
Merge pull request #677 from Wikia/DAR-88

DAR-88: prevent image size events from firing twice.
VID-208 Fix wg variable per Moli's suggestion
DAR-99, add click tracking to add photo in slider
Merge branch 'dev' into DAR-36
DAR-36: fix VET close/success-return button for DAR-102.
bugid-49417 | Wikia photo gallery css fix for miages without thumb
bugid-49417 | Wikia photo gallery css fix for miages without thumb
bugid-49417 | Wikia photo gallery css fix for miages without thumb
bugid-49417 | Wikia photo gallery css fix for miages without thumb