Use svg instead of png to get better image quality
Merge pull request #1743 from PeterDaveHello/patch-1

Use svg instead of png to get better image quality
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
Explain native text tracks support decision.
rename caption-settings.js to text-track-settings.js
Throw in addTextTrack when kind not provided
Do not throw when called from addRemoteTextTrack;
Rename featuresTextTrack to featuresNativeTextTrack
Player isn't optional for TextTrack
moved event.preventDefault() inside of if-then structure
Added a line to the changelog for #1760
get rid of getProp
appease jshint
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