Remove wf2 skin order config from wf2-config.
Remove wf2 skin.order loader enhancements
Remove skin.order configuration from wf2-config.
Add empty sketch skin file for autocomplete-list.
Add empty wf2 skin files to avoid 404s when changing the defaultSkin.
Remove wf2 skin directories. These will be added back shortly.
Add empty skin files for wf2 sketch, nx and nxt directories.
Add missing wf2 empty skin files for slider-base.
Add empty skin files for wf2 sketch, nx and nxt directories.
Merge branches 'wf2-nx_nxt_skinning' and 'wf2-dev-2.x' of https://github.com/wf2/yui3 into wf2-nx_nxt_skinning