Created sample data for UCLs, Workers and one instrument
Halfway through adding SectionsController, fixed some schema issues
Created example instrument in db/seeds
Implemented numberwise positioning on sections and questions
Updating answers for section now redirects to next section
Added next button for each section, TODO: implement this as a submit button on the controller update action
Implemented back and next actions on section submit that save instrument and do a proper redirect
Added validations to some models, added display of current Evaluations