Add buylink field to module metadata
Add cnx-archive_get_buylinks command line script

It takes collection ids as arguments, gets the buy link for each
collection from the plone site and inserts it into the database.
Add @db_connect in tests and remove duplicate db connection code
Merge pull request #26 from karenc/add-buylink

Add buylink
Create httpexceptions.HTTPFound for redirecting in views
Include the cnx-user database shadow.
Supply cnx-user JSON when responding with user information.
Renames main database schema file.
Adds cnx-user user schema to database initialization.
Redirect to latest version when the content api has no version
Adjust test data to include user references.
Use argparse, because other options need added.
Adds ability to initialize the database with example data.
Merge pull request #29 from karenc/content-api-without-version-v2

Content api without version v2
Adds a Travis CI configurtion
Add header Access-Control-Allow-Origin: * to all GET responses

This fixes the problem of webview not able to access cnx-archive because
they are cross domain. (Close issue #20)
Fixes a pre-install command within the travis-ci config.
Adjusts database setup before travis-ci test run.
Adds the travis-ci test setup command to create the database.
Use the postgresql 9.3 contrib and plpython packages in the travis-ci setup.