Added try/catch to protect against IE with no Media Player
Exporting tech.setPoster(). Fixes #1028
Added an IIFE to prevent deoptimization
Added line to the changelog
Merge branch 'patch/setposter-export' of git://github.com/heff/video-js into heff-patch/setposter-export
Added line to the changelog
Release 4.4.3
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
Merge branch 'master' of github.com:videojs/video.js