Bug 16541 - Make edit and delete links styled buttons in cities administration

Bug 16541 - Make edit and delete links styled buttons in cities administration

This patch modifies the cities administration page, converting edit and
delete links to Bootstrap buttons with Font Awesome icons.

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

Signed-off-by: rainer <archiv@a-bibliothek.org>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>