Set up tests for ill_library and institution code
Remove comma from last part of hash
Add ill_library to patron
Add institution_code into omniauthhash base
Add logic for determining institution_code for aleph
Add institute code for new school.
Add institution_code for nyu_shibboleth
Add institution_code to the user level
Seperate institution for ill_library and istitution for bor_status
Change some expected test data.
Use || instead of 'or' as per ruby style guide.
Merge pull request #56 from NYULibraries/feature/determine-institution

Feature/determine institution

[Finishes #79738560]