Added bike data model and controller.

 On branch master
 Your branch is up-to-date with 'origin/master'.

 Changes to be committed:
	new file:   app/assets/javascripts/exzbikes.js.coffee
	new file:   app/assets/stylesheets/exzbikes.css.scss
	new file:   app/controllers/exzbikes_controller.rb
	new file:   app/helpers/exzbikes_helper.rb
	new file:   app/models/exzbike.rb
	new file:   app/views/exzbikes/_form.html.erb
	new file:   app/views/exzbikes/edit.html.erb
	new file:   app/views/exzbikes/index.html.erb
	new file:   app/views/exzbikes/index.json.jbuilder
	new file:   app/views/exzbikes/new.html.erb
	new file:   app/views/exzbikes/show.html.erb
	new file:   app/views/exzbikes/show.json.jbuilder
	modified:   config/routes.rb
	new file:   db/migrate/20140531165426_create_exzbikes.rb
	modified:   db/schema.rb
	new file:   test/controllers/exzbikes_controller_test.rb
	new file:   test/fixtures/exzbikes.yml
	new file:   test/helpers/exzbikes_helper_test.rb
	new file:   test/models/exzbike_test.rb