Change wf2 exec script for loader's build.json.
Use YUI.applyConfig to set wf2 specific global configuration.
Update wf2-config's skin order check to use touchEnabled.
Remove wf2 skin order config from wf2-config.
Merge branch 'wf2-dev-2.x' into wf2-dev-master
Merge branch 'wf2-dev-master' into wf2-2.x