Bug 9769 [Revised] Replace YUI buttons on acquisitions basket page with Bootstrap

Bug 9769 [Revised] Replace YUI buttons on acquisitions basket page with Bootstrap

Toolbar buttons on the acquisitions basket page are constructed by YUI.
They should use Bootstrap instead.

Other minor changes: Fixes for invalid markup.

To test, view baskets in various states: Empty, open closed. View
baskets in groups and not in groups. Buttons should look correct and
work correctly:

- Edit
- Delete
- Close
- Reopen
- Export

Revision corrects check for 'skip_confirm_reopen' variable when
reopening baskets. Please test with BasketConfirmations both on and off.

Signed-off-by: Brendan <brendan@bywatersolutions.com>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Tested all options, some notes about behaviour:
- closing a basket is only possible, when there are no uncertain prices
  (no button close basket)
- reopening a basket requires, that you first remove the basket from
  any basket group (no button to reopen basket)
Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>