Tagging implemented using the acts_as_taggable_on gem.
Updated the schema and videos/new page.
Added login validations to /users/sessions/new, so an invalid email/password combination prints an
error instead of silently failing.
added blurb, title, city, state to users table
User can edit title, blurb, city, state, style_list. no validations at present.
also, updated the existing validations (e.g password confirmation) to just run
upon creation.
added helper to get all videos for a particular user
Merge branch 'master' of https://github.com/yeaz/dancespace

Conflicts:
	Gemfile
	Gemfile.lock
	app/controllers/videos_controller.rb
	app/models/user.rb
	app/models/video.rb
	app/views/users/sessions/new.html.erb
	app/views/videos/new.html.erb
	db/schema.rb