database is now working.

	modified:   create.rb
	modified:   database design
        modified:   labstream-db.rb
	modified:   labstream.rb
	new file:   landingpage.rb
	modified:   mainpage.rb
	modified:   public/css/labstream.css
	modified:   users.rb
	new file:   views/frontpage.haml
        modified:   views/labstream.haml
	new file:   views/userlandingpage.haml