AUI-854 TreeView duplicating child nodes
AUI-905 - AUI Tree "Load more results" link does not show up on tree nodes that are open when page is loaded
Merge branch '2.0.x' into pull-request-178-AUI-854
Merge branch '2.0.x' into pull-request-179-AUI-905
Overwrite Y.Tab._renderPanel in order to avoid re-appending tab panel nodes if they are already in doc. This operation can potentially steal focus of internal elements.
Merge branch '2.0.x' of github.com:eduardolundgren/alloy-ui into AUI-906