Update all files and models, including user auth and SS

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Merge branch 'master' of https://github.com/geneeves/urly_tiny

Conflicts:
	Gemfile
	Gemfile.lock
	app/views/urls/index.html.erb
	app/views/urls/show.html.erb
	config/routes.rb
	db/schema.rb
	spec/spec_helper.rb
Add SSL and user auth