no availabilty/details panes when there are no holdings. fixes #435
removed show/hide from citation, fixes #429
always display ill link for non-wrlc items
fixes #536
Merge pull request #537 from edsu/t536-move-explore-type-setting

EXPLORE_TYPE now in local_settings.py.template
took out issn identifier from citation, refs #429
Merge pull request #533 from gwu-libraries/t429-improve-print-layout

removed show/hide from citation, fixes #429
Merge pull request #532 from edsu/t435-no-holdings-display

no availabilty/details panes when there are no holdings. fixes #435
Merge pull request #535 from edsu/t534-ill-links-not-displaying

fix inter-library-loan link display