Bug 18327: Add the ability to set the received date to today on multi receiving serials

Bug 18327: Add the ability to set the received date to today on multi receiving serials

When receiving several issues for a subscription (Serials > Serial
collection > Multi receiving), the reception date is always identical to the
publication date.
In some use cases we would like to set this "date received" value to
today.
Note: "date received" refers to the DB column serial.planneddate

To make this possible this patch replaces the JS prompt with a modal
dialog asking for
 1. the number of issues to receive
 2. if the received date must be set to today

Ergonomic note: bootstrap styled buttons are used, but they do not display correctly
We may need to improve that (later)

Test plan:
- Receive 1 or more serials using the "Multi receiving" buttons
Note that this button appears twice, on the "serial collection
information" and the "serial edition" pages
- Try with and without the new checkbox ticked and confirm the behaviour
is correct (i.e. date received is set to today or set to the publish
date)
- Make sure "Edit serials" and "Generate next" buttons still work as
before

Signed-off-by: Séverine QUEUNE <severine.queune@bulac.fr>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>