Allow for Admin to Edit / Delete

Allow for Admin to Edit / Delete articles. Allow allow for edit / delete of articles if the user was deleted.
Add authorization to Article Controller

Allow for edit / delete authorization for admin and article owner by a function in the ArticleController
Use Article Controller Authorization Function

Use New ArticleController authorization function
Add edit / delete buttons

Add edit / delete buttons to the article list
Update list.html
Update view.html
Update articles.js
Add isAdmin for authorization

Add isAdmin for hasAuthorization allowing Admin to delete package objects
Update articles.js
Update articles.js
Update articles.js
Merge pull request #475 from enkodellc/master

Admin / Authorization updates