Bug 23302: Less clicks on Z3950 search results

Bug 23302: Less clicks on Z3950 search results

Functional change: Instead of requiring two clicks for each option in
the Actions menu, we add a default action based on previous activity.

NOTE: In order to prioritize MARC and Card preview actions, we will only
remember Import and Order when it is not preceded by a preview. In other
words: If you directly click Import, Import comes back. If you click Card
and Import, Card comes back.

Technical changes:
[1] Combine Preview and Order button on Acquisition Z3950 search.
[2] Use Actions link as default action and add button with caret to open the dropdown.
[3] Keep last action in localStorage (sessionStorage makes not much sense for the popups), prioritizing previews.
[4] Where needed, add title attributes to dropdown links. Use class 'chosen' to differentiate preview popups from import/order actions.
[5] Replace previewMARC by previewData in Authority Z3950 search. Remove duplicate code.
[6] Use link href from template instead of constructing link in javascript.
[7] Removing unused linktools markup from acqui template.

Test plan:
[1] Start on acqui Z3950. Choose Card once from the menu and then Order.
[2] Start auth Z3950. Verify that Default is MARC now. Close popup.
    (Since Card is no option here.)
[3] Start cataloguing Z3950. Verify that you have Card as default.
    Click Import rightaway.
[4] Back to auth Z3950. Verify that Import is default. Click Import.
[5] Back to acqui Z3950. Verify that MARC is default (no Import here).
    Click Order. Go back and verify that Order is now default.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Michal Denar <black23@gmail.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>