Bug 16543 - Make edit and delete links styled buttons in patron attribute types admin...

Bug 16543 - Make edit and delete links styled buttons in patron attribute types administration

This patch modifies the Patron attribute types page, converting edit and
delete links to Bootstrap buttons with Font Awesome icons.

To test, apply the patch and go to Administration -> Patron attribute
types. The 'Edit' and 'Delete' buttons should look correct and work
correctly.

Signed-off-by: Jan Kissig <jkissig@th-wildau.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>