ADEN-1132 Added wgAdDriverUseEbay to DefaultSettigns
ADEN-1132 eBay prototype module styles
CON-1074 | max z-index change
ADEN-1132 Removed ebay-before-comments logic
CON-1074 | Zindex change fix
CON-1074 | Zindex change fix
ADEN-1132 Refactor eBay logo SVG
PLATFORM-240 Enforce coding conventions for mustache templates

Several shared templates used a non-standard naming convention that
required extraneous boilerplate to use from controllers (specifically,
`$response->setTemplateEngine` and `$response->setTemplatePath`), and
made the mapping from controller action to template filename less
obvious. Rename these files to the expected filename and further reduce
boilerplate for fully-mustachioed extensions by adding support for
`DEFAULT_TEMPLATE_ENGINE` as a controller-level constant that defaults
the rendering engine to the defined value.
PLATFORM-240 Conform Thumbnail js to jscs-defined style
ADEN-1132 Remove MOBILE_PREFOOTER top border for eBay
ADEN-850 Remove wgAdDriverUseGptMobile* and clean up
ADEN-850 Rename ad_slots2 to ads_run, wikiamobile_ads_gpt_js to wikiamobile_ads_js
ADEN-850 Add a note about DartUrl and WikiaDartHelper
VE-1100 Fix back button behavior in VE, using fix from upstream
CON-1140: Error handling
CON-1140: Better placement of save button
CON-1140: Trim fields
ADEN-1162 Don't add cachebuster to 71M URLs
CON-1076 | added @noflip to background rules which are unnecessarily flipped by CSSJanus
BAC-719 Trigger events on tabber tab change

Tabber offers a not-very-helpful hook system to run code after switching
tabs, but there is no guarantee on the load order of this module to
either insert hooks manually on the prototype and no way to specify the
hook at creation time (because it's automatic). Trigger a `scroll` event
because most of the things that are waiting to see if their visibility
state has changed will listen for `scroll`.

Additionally, prevent ImgLzy from thinking that just because an
element's offset values are in the right range, that it's actually
visible. It needs to not be in a `display: none` element for that to be
true. This avoids the stuttering that occurs when scrolling the page for
the first time when many galleries are embedded in a tabber that is
entirely visible; previously, it would try to load ALL of the images
(since it was only offset based), and now it makes sure the elements
aren't still hidden by Tabber.