Clean up mouse event storage.
Fix crash when additional properties are added to AutomaticUniforms.
Merge pull request #1328 from AnalyticalGraphicsInc/durandalCompatibilityFixes

Durandal compatibility fixes
Merge branch 'master' into cameraEvents

Conflicts:
	Source/Core/ScreenSpaceEventHandler.js
Revert some changes afetr merge.
Fixes after merge.