Gets rid of unneeded vase version of saveFrom on the Neatline abstract model.
Adds tests for record saveForm() styles management.
Consolidates record and records controllers, updates phpunit tests.
Updates .js to respect new controller structure.
Fixes typo in styles panes.
Structure in place for exhibit controller GET action.
Adds GET action to exhibits controller.
Implements automatic stylesheet updating in editor.
Finishes implementation of stylesheets.