added styling to home page, new deals, and signup
Merge branch 'geostyling'

Conflicts:
	Gemfile
	app/assets/stylesheets/sessions.css.scss
	app/controllers/sessions_controller.rb
	app/views/deals/new.html.erb
	app/views/layouts/_businessnav.html.erb
	app/views/sessions/business_index.html.erb