add plugin localization doc
doc update
Add the playback rate menu to the content el. closes #1716, fixes #1712
Make sure that setSource is directly on prototype
This is to make the new source handlers backwards compatible and so it
wont break techs that extend existing techs that were converted to use
source handlers. closes #1746
Release 4.11.2
Merge branch 'stable'

Conflicts:
	dist/video-js/video-js.css
	dist/video-js/video-js.min.css
	dist/video-js/video.dev.js
	dist/video-js/video.js
moved event.preventDefault() inside of if-then structure
Added a line to the changelog for #1760
Export tech.setSetsource method for Html5 and Flash
Added a line to the changelog for #1753
Fix rtmp rtmpSourceHandler calls to tech
Added a line to the changelog for #1755
Release 4.11.3
Merge branch 'stable'

Conflicts:
	dist/video-js/video-js.css
	dist/video-js/video-js.min.css
	dist/video-js/video.dev.js
	dist/video-js/video.js
@mmcc updated the hide/show functions to use a class instead of inline styles. closes #1681
Warning for previously updated players; doc update
Updated #1730 to use the ready function instead of warning.
Added a line to the changelog for #1730.
closes #1730
@anhskohbo added a Vietnamese translation. closes #1734
@Sxmanek added a Czech translation. closes #1739
Add vjs-scrubbing class to player while scrubbing