add offers and requests scopes
Merge branch 'master' of github.com:patbl/ea-skillshare

Conflicts:
	app/models/proposal.rb
add named routes for sign in and Facebook auth
add "require: false" to guard-livereload

I was having problems with it, but I doubt this was what solved them
don't filter tests
deleting a user causes the user's proposals to be deleted
add factories for offers and requests
move navigation to a partial
add some authentication to delete
allow users to edit their profiles
allow users to edit their profiles; allow admins do delete them
various view changes