LP#1670448: Rearrange space for bib record action buttons

LP#1670448: Rearrange space for bib record action buttons

The addition of the view/place order button pushed other action buttons to a
2nd row. We also need to make room for the forthcoming serials button. This
commit 1) changes the div classes for the navigation buttons and action buttons
so that it is now a 50/50 split of screen space and 2) moves some action items
into a 'Other Actions' menu.

Signed-off-by: Kathy Lussier <klussier@masslnc.org>
Signed-off-by: Bill Erickson <berickxx@gmail.com>