Temporary local revision - still working.
Prototyping using Ext.js - list, add ok in prototype; need to fix delete, update and the cell editing.
Added missing example-related dependency (for a message display)
Fixed the routing and actions to handle all CRUD cases for an Activity Skill.
Fixing missing ext.js files - or so I hope.
Adjusted the test example to remove some of the Sencha example text.
Moved the Ext.js grid into the edit activity template.   This is causing some minor trouble with the CSS files, but it looks okay enough for now.
The initial combobox is mostly working (except perhaps making sure the initial value is selected that matches).  Still working on the combobox cascade issue).
Ok, the first part of the activity skill editing cascading combo box is working - not changing category but changing the skill saves as expected now with a little beforeQuery magic.
Added what should be the final fix for the cascading combo box problem; This should now update as expected.
Fixed a few issues with adding and editing an activity; also added some comments.

Ready to begin the merging process with the main branch.
Merge remote-tracking branch 'remotes/origin/master' into steve_activity_list

Conflicts:
	talent_match/forms.py
	talent_match/models.py
	talent_match/views.py
Adding a button and links to create a new activity and edit an existing activity.