OSMF SVN

More layout fixes: LayoutContextSprite now draws a shim size holder. This fixes issues where its scaleX/Y goes to 0, which in turn causes confusion with ScalableSprite. Additionally updating Example player's code on the parallel video demo.

Removing Serial (centered) test, for centering is now okay without a layout too. Adding one single layout routine for putting two elements adjacent to each other.

Changing a function name.

Extending ILayoutContext with an 'updateIntrinsicDimensions' method, that the ILayoutRender uses to inform the context that context's intrinsical dimensions may have changed because its children got layed-out. Adding implementing code to LayoutContextSprite and LayoutRendererBase.

Adding code that sets a target's intrinsical width and/or height on its view if no other sizing attributes are provided for the target.

Updated tag sprint5-stable.

Deleted directory sprint5-stable.

Consolidate duplicate FlexUnit SWCs.

Fix some misleading URLs.

Created tag sprint5-stable.