* Added missing jsdocs
* Disable multi-select for the main competencies tree (only allow it in the popups).
* Disallow selecting the top node in the competencies picker
* When multi-select is disabled, the selectionchanged event now only passes the one node, not a list with one item.
* Removed the flash when loading the picker (by hiding the tree while it's being rendered)
This includes:
* Move all JS modules from lib/amd to admin/tool/lp/amd
* Add all jsdocs
* fix all jshint warnings
* Rewrite the actionmenu wrapper to a real amd module