forced django not to convert our strings to unicode when binding parameters. added tests to make sure id lookups run quickly. fixes #611
only do oracle specific configuration when oracle is being used
needed correct settings variable
summon does not prefix george mason university ids with an "m" ; but our ui.summon will add it now so it can be used downstream in templates. fixes #600
Merge pull request #614 from gwu-libraries/t611-slow-id-lookups

T611 slow id lookups
Merge pull request #615 from gwu-libraries/t600-incorrect-holdings

T600 incorrect holdings