fix build problem

[echo] Building html5
[java]
[java] [ERROR] 5167:63:unterminated string literal

src\js\html5\jwplayer.html5.defaultskin.js : line 5
Merge pull request #216 from tuanthien/patch-1

Build fix for developers using python 3
[jwplayer] fixed infinite buffering issue on mobile [Delivers #83128276]
Reused _isMobile
[jwplayer] fixed form postback issue on mobile [Delivers #72548052]
onReady should fire after playlist is ready [Fixes #83674558]
Insure onReady fires after first playlist is ready [Fixes #83674558]
Removed _this.setState(states.BUFFERING);
Merge pull request #217 from jwplayer/bugfix/infinite-buffering-mobile

[jwplayer] fixed infinite buffering issue on mobile [Delivers #83128276]
renamed playlist ready hander
stick to tab spacing in Controller.as
Merge pull request #219 from jwplayer/bugfix/form-postbacks-mobile

[jwplayer] fixed form postback issue on mobile [Delivers #72548052]
Merge pull request #220 from jwplayer/bugfix/onready-play

onReady should fire after playlist is ready [Delivers #83674558]
changing http to use // prevent mixed content messages for html5 player
onReady should fire after onPlaylist [Fixes #83674558]
Merge pull request #223 from jwplayer/bugfix/onready-play

onReady should fire after onPlaylist [Delivers #83674558]
Merge pull request #222 from earlyster/master

changing http to use // prevent mixed content messages for html5 player
[jwplayer] fixed controlbar doesn't fade out after mouseout with SMIL [Fixes #67439788]
Merge pull request #224 from jwplayer/bugfix/smil-rtmp-controlbar-fading

[jwplayer] fixed controlbar doesn't fade out after mouseout with SMIL [Delivers #67439788]
element.style is an array like object. This fails silently except in ie8 where an exception is thrown [#84149558] Setting display inline shows buttons that should be hidden  (cast button)