CMSSharedBundle: Layout model now links to a rootBlock.
CMSPageBundle: LayoutManager and LayoutCRUDController work.
BlockCRUDController->getBlock (and related) now DRYer. Block respone array created in a function.
BlockCRUDController->getBlockChildren now works correctly.
BlockManager->hasContent() implemented. Returns TRUE if loaded block has content attached to it.
CMSPageBundle: Updates to CMSPage JS lib.
- Attempt to fix event unbinding for rendering blocks. Not quite there yet.
- Layout Toolbars now appear on the right-hand-side.
- Probably some other miscellaneous changes.