Bug 30454: Convert holds awaiting pickup tabs to Bootstrap

Bug 30454: Convert holds awaiting pickup tabs to Bootstrap

This patch updates the holds awaiting pickup page to replace jQueryUI
tabs with Bootstrap tabs. A minor JavaScript change is required to work
with the new HTML structure.

To test you should have multiple holds for one library: Some which are
waiting for less than the number of days specified in
ReservesMaxPickUpDelay, some which are waiting longer.

- Apply the patch and go to Circulation -> Holds awaiting pickup.
- You should see two tabs: "Holds waiting" and "Holds waiting over..."
- Confirm that the tabs look correct and work correctly.
- Confirm that the "Cancel selected" buttons work correctly under each
  tab.

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>