Fixes #357

We refactored the JavaScript and HTML for the Colleges list and Other College fields when creating a publication. This PR tests the functionality of those changes when applied to a new Artwork. Since all publication types are inheriting from the same partial, it is assumed that tests passing for one publication type will pass for all. This pr tests:

• it 'selects an already listed college'
• it 'toggles the Other College text field'
• it 'allows user to select Other college without filling in the Other name'
• it 'remembers the typed in Other College when the Other checkbox is unchecked'
• it 'does not save a typed in Other College if the Other checkbox is unchecked'
• it 'saves both a listed college and Other college when selected'