Bug 23775: Claiming a serial issue doesn't create the next one

Bug 23775: Claiming a serial issue doesn't create the next one

Whenever we need to generate manually a new serial we go to page
'serials-edit.pl'. With this patch it is possible to generate a new
serial on page 'serials.pl'.

Test Plan:
-- Previously we need a serial which is in EXPECTED status & the Date
received should not be later than today --
1) On the intra. Make sure to have at least 1 subscription for a
   bibliographic record & 1 vendor linked
2) Then Home > Serials > Claims > Claims for <your_vendor_name>
3) Tick the checkbox of the row where the status is EXPECTED then
4) Click 'Send notification'
5) Notice the status of the row : it is now CLAIMED
6) To verify: Home > Serials > Serial collection information for
   <your_record_name>
7) Here the status is CLAIMED too but nothing happened around
8) Apply patch
9) Repeat from 2) to 6)
10) The status is still CLAIMED & the new serial with status EXPECTED is
    freshly generated

Signed-off-by: Sam Lau <samalau@gmail.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>