Fixed Mute/UnMute when playing a YouTube video

The flash player was not correctly reporting the muted state when using
the YouTubeElement.as class
Update mejs-skins.css

correct .mejs-time-buffering height
fix multiple autoplay with plugins
Fixed Flash fallback error when serving flashmediaelement.swf through HTTPS to an Insecure host.
Console output should be commented

It produces Error messages in IE
Console output should be commented
check pluginMeidaElement is exist when fireEvent
fix firefox detect 100% mode issue
fix for controls that hide if keyboard scrubbing

In version 2.9, I reported issue #548, that controls hide when using
keyboard to scrub even if the alwaysShowControls option is set to
"true." Pull request #569 merged this fix, but did so in the /build
directory. It appears that fix did not move forward with versions and
the issue is occurring in the latest version. Adding fix in the /src
directory so that future builds get the fix.
adding controls fix to build and minified versions
Fix for issue #754, no duration display w/jQuery 1.9

Removed leading and trailing spaces in timeAndDurationSeparator to work
around change in jQuery selector build rules as detailed in comment to
issue #754 by marshallbu.
timeAndDurationSeparator fix added to build
Fix for issue #902

In build tracks function, I added a check to see if the browser will
attempt to do present captions natively. (Currently only a feature in
Chrome. Outside of mejs, my if statement would include a check to see
if any textTracks were declared (t.domNode.textTracks.length > 0), but
the buildtracks function already checks for player.tracks.length.) If
this is true, we prefer to use mejs captions and loop through the
textTracks to set their mode to "hidden" to prevent display.
fix for ff switch between fullscreen and normal mode
textTracks fix added to /build
add fullscreen css class
Update the year of date for change log entries

so that the dates for version 2.10.3 and 2.11.0 entries show
year 2013 instead of 2012.
fix error in method declaration of some features

replace '=' by ':'
backlight and playlist are concerned

Signed-off-by: Eric Villard <dev@eviweb.fr>
Added configuration option httpsBasicAuthSite to indicate if HTTPS basic authorization is in use. Some browsers like Safari and Android Chrome and stock browsers can't use the native HTML5 player with videos protected by HTTPS basic auth.
Fix touch detection in QtWebKit

QtWebKit defines this property and sets it to null. This change has been made in other JS projects as well.

https://github.com/hakimel/reveal.js/pull/337 (others referenced from here too).