Proof of concept for recognizing page change
Do not modify the width of the top bar where the button sits

This is too fragile when youtube change their design.
Reset button on page change
Update the size change code for the new youtube design (09-2013)
Merge: Initial support for youtube spf (pushstate ajax site loading)

Conflicts:
	data/youtube-html5.js
Do not hide flash on live streams

This enables you to use the API together with click_to_play to watch normal videos
and live streams without changing a setting.
This also makes the code a little bit easier, because wo do not need to wait for
the dom to become ready but let the addon kit do the work
Full support for youtube spf (pushstate)

Spf is disabled on all but the video sites.
The button now startes the video automatically after a site change via spf.