Prepare evaluation_templates controller
Copy methods from evals cont. to templates cont.

- Copy some methods from evaluations controller to evaluation_templates
  controller
Add indices and associations to eval, tmplt, qrtr

- Add indices and associations to evaluations, evaluation_templates, and
  quarters

- Move template views from the evaluations folder to the
  evaluation_templates folder
Prepare evaluation.rb for move to new template sys

- Prepare evaluation model for migration to new template system
Update routes.rb to acct for eval_templates, evals

- Update routes.rb to account for changes to evaluation_templates and
  evaluations
Add evaluation templates page (index)
Fix initial bugs on template edit page
Replace 'edit' with 'show' for templates
Add basic 'new template' form
Finish basic evaluation creation feature
Fix template 'show' page
Fix update actions on template show page
Fix template update_basic_info method
Add 'set all templates to inactive' feature

- Add feature to set all templates in the same quarter to inactive when
  one is set to 'active' (within their quarter)
Add help text to template new and edit forms
Update template page title

- Also, add templates link to admin navbar dropdown
Update title for evaluation page
Add evaluation links below application table
Update text and links to evals below app table