Added loadingSpinner config demo, updated prettyConfig for some edge
cases.

* adds hide /show spinner API.
return false
Support inline scrubber with test file, some white space fixes.
fixed thumbnail going off the screen on the right side
Merge branch 'master' into loadingSpinnerConfig
Support legacy disable spinner config option and standard config.plugin
version 2.1.x
fix #FEC-605 time 2h message removed border for IE in the CSS
#FEC511 #time 3h #comment exiting full screen upon movie end on iPhone only
#SUP-1268 #time 3h #comment added condition to removePoster
updated some fixes and code conventions
#FEC-660 #time 1d #comment fix changing ui components visiblity from livestream plugin, livestream code enhancements
#FEC-672 #time 1h #comment added partnerId to "isLive" api call
remove debugger!
FEC-655 #comment make sure that skip ad will be clickable when controlbar is hover #time 2h
fix islive - add partnerid
missing ; in 2 lines
Merge branch '2.1-Dec-29' of https://github.com/kaltura/mwEmbed into 2.1-Dec-29
#FEC-614 #time 4h #comment fixed full screen toggle in unfiendly iframe for Chrome and IE8
#FEC-603 #time 2h #comment Fixed related screen on mobile devices