Bug 22999: Switch two-column templates to Bootstrap grid: Circulation

Bug 22999: Switch two-column templates to Bootstrap grid: Circulation

This patch modifies the circulation page template to use the Bootstrap
grid instead of YUI.

To test, apply the patch and view the checkout page, confirming that
it looks correct at various browser widths:

 - Check out (no patron)
 - Check out -> Patron search
   - Results
   - No results
 - Check out -> Patron selected
   - Can check out
     - Checkout blocked (renewal confirmation, item on hold, etc)
   - Can't check out (expired, restricted)

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Josef Moravec <josef.moravec@gmail.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>