Merge pull request #17 from raphaelm/master

Update with latest commits from raphaelm
Reservations for BiBer, works in Baden-Baden
BiBer: Show error message if media is not reservable
Make BiBer reservations work in older OPACs (with "opac" directory
instead of "opax")
Add description "branch" to selection when reserving in BiBer
Media type search with SISIS (tested in Erfurt)
Also add year range support for SISIS, generalized code for
"restrictions"
Revert "Also add year range support for SISIS, generalized code for "restrictions""

This reverts commit c0340793887504c8e85365997222ed6277d44c66.
Possible Bugfix for BiBer reservations where we don't have a working
test account (e.g. Bad Kreuznach, Erkrath)
Remove Weilheim an der Teck (now uses OPEN)
Fix search keys for Friedberg THM
Merge pull request #232 from johan12345/master

Reservations for BiBer