added Responses#show list table
expanded Responses#show list table
added CasesReponses#new and #create
prettied response tables
unlinked case in CasesResponses#new
on source saves, redirects to tab based on new source type (in case changed in form)
converted response.response_content input from text_field to radio button
cases already linked to a response do not display so that they can be linked again
added source_type dropdown to source form
Merge branch 'response' into add-geo-node (Roll Luke's final work on
Response and Source into add-geo-node)

Conflicts:
	app/assets/javascripts/responses.js.coffee
	app/controllers/responses_controller.rb
	app/models/list.rb
	app/models/response.rb
	app/views/cases/edit.html.erb
	app/views/cases/new.html.erb
	config/routes.rb
	db/schema.rb
Add migration to align schema.rb of direct ancestor merge: add notes:text to sources table