[#1347] youtube wrapper to maintain its own current time, and do not bounce around during a seek.
Bug 1397 - Vimeo should support https
[#1393] pull addTrackEvent calls out of the update function stack.
Bug 1412 - https instead of http for SC.get in SC wrapper

Fixes GH-269.
[#1330] Create a wrapper elem right away, add it to the dom on ready. This allows calls to height/width before loaded is done, without crash.