Fixed saucelabs browser version detection.
Fixed a few memory leaks in some of the unit tests.
Fixed so the autosave plugin beforeunload handler de-references the editor instance.
Fixed so the WindowManager and PanelButton closes it's float panels properly on editor removal.
Optimized the internal validChildren map in Schema.js.
Restructured editor event binding/unbinding and fixed event leaks.
Reworked element cache from a global cache to an instance cache.