Bug 1662: Is there a difference between Full and Simplified for Serials History

Bug 1662: Is there a difference between Full and Simplified for Serials History

Changes description of system preference SubscriptionHistory:

When showing the subscription information for a bibliographic record,
preselect [brief history|full history] view of the serial issues.

To test:
1) Verify new description shows in system preference editor (tab serials)
2) Verify description is correct (OPAC > Subscription tab > more details)

Signed-off-by: Marijana Glavica <mglavica@ffzg.hr>
Signed-off-by: Paul Poulain <paul.poulain@biblibre.com>