Bug 11271 - Serials table off the screen in smaller viewports

Bug 11271 - Serials table off the screen in smaller viewports

When you search for serials in the Serials module the results table is
often too wide for the screen (depending on your browser window size).
This is partly due to the fixed width of the search fields in the table
footer.

This patch applies a flexible width to those <input>s and reduces the
font size of their text.

This patch also moves the "action" links for each table row into an
"action" menu (similar to the change made by Bug 10615 in Reports) to
further conserve screen space.

This patch also revises the page's DataTables configuration to use table
header classes for sorting configuration.

To test you should be able to perform a search which returns multiple
open and closed subscriptions.

- Test that table sorting works correctly, including for titles with
  articles and for dates.
- Test that the Action menu items work correctly and that they correctly
  reflect the permissions of the logged-in user with regard to
  receive_serials and routing.
- Perform these tests on both the "Open" and "Closed" tabs.

Signed-off-by: Chris <chris@bigballofwax.co.nz>
Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Works nicely and improves the display significantly.
Passes tests and QA script.

Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>