Bug 11860: Display subscription callnumber in OPAC detail page

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Brendan Gallagher <brendan@bywatersolutions.com>
Bug 11860: (follow-up) standardize spelling of "call number"

It is "call number", not "callnumber".

Signed-off-by: Galen Charlton <gmc@esilibrary.com>