add warn model + tests + seeds
add warns + factory + small update controllers & tests
update queries - part 1
Merge branch 'dev-60931378-stack-index-markup' of github.com:HH-project/hh into dev-61673538-style-form

Conflicts:
	app/views/dispatch_imgs/_form.html.haml
	app/views/dispatch_imgs/_tags_for_form.html.haml
	coverage/.last_run.json
	coverage/.resultset.json
	coverage/index.html
	db/schema.rb