Fixes #5673 - Allow deletion of role with users

Fixes #4608 - Added description field to role

Fixes #13047, #16291 - Upgrade datatables and move it to npm

Fixes #7806 - allow taxonomy association on role level

Fixes #12945 - use helper for table css classes

Fixes #12979 - Create helper for "new" button

Previously the button classes were applied to new buttons using jQuery.
This commit creates a `new_link` helper that makes sure all new buttons
will receive the correct class and only display if authorized. Also a...

Fixes #12380 - Added the ability to select pagination mechanism in /filters

Fixes #4629 - Migrate UI to Patternfly

Fixes #8800 - Clip table cells only when needed

For clipping to work, table must have class `table-fixed` and the cell
have class `ellipsis`. Also column widths should be set in table head.
Clipping will occur automagically with tooltip.

Fixes #7574 - Rails 4 :data attributes substitute deprecated HTML options