Override Worthwhile catalog controller to remove publisher from facets
# This is a combination of 4 commits.
# The first commit's message is:
Fixed issue with separators for the contributors field

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#	oracle-compliant table, column, and index names

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#	adds oracle gems to Gemfile

# This is the 4th commit message:

Add a test that checks for database identifers that won't work with Oracle. Ref #47