remove continuous update (66ms) of mediaqueries, replace by stalled update (100ms) on every possible event influencing the windows dimensions. All other possible events influencing elements dimensions, must be triggered manually.
fixing syntax to prevent variable be global and removed not needed variable
Fixing issue duplicating registration of media queries. It was adding twice on media list array.
Merge branch 'master' of https://github.com/Sewdn/MediaClass

Conflicts:
	MediaClass.js
Merge pull request #1 from luchoooo/master

Performance improvements, syntax fixing and issue fixes