[core] Add wsgi.py script to simplify deployment to Apache
HUE-2479 [fb] Cancel moving a file with drag and drop

Implemented like Dropbox: if you try to copy it over itself it displays a warning
HUE-2152 [pig] Credentials support for HCat in editor

Automatically add a 'hcat' credential when using HCat and a secure
cluster.
"[fb] Make archive upload case insensitive"
HUE-2102 [oozie] Workflow with credentials can't be used with Coordinator