LP1823981 Angular perm group admin UX improvements

LP1823981 Angular perm group admin UX improvements

* Loading progress now increments as data arrives.
* Application perm list is now sorted
* Deleted map now use warning background instead of danger as it appears
  to have better contrast.
* Inherited perms display the label 'Inherited' in the delete colum.
* Remove border boxes around non-actionable inherited values.
* Use Bootstrap button links instead of <a> for links to perm groups to
  improve contrast and consistency.

Signed-off-by: Bill Erickson <berickxx@gmail.com>