update gemfile
	modified:   Gemfile
	modified:   Gemfile.lock
	deleted:    vendor/cache/aasm-3.0.17.gem
	deleted:    vendor/cache/actionmailer-3.2.13.gem
	deleted:    vendor/cache/actionpack-3.2.13.gem
	deleted:    vendor/cache/activemodel-3.2.13.gem
	deleted:    vendor/cache/activerecord-3.2.13.gem
	deleted:    vendor/cache/activeresource-3.2.13.gem
	deleted:    vendor/cache/activesupport-3.2.13.gem
	deleted:    vendor/cache/acts_as_tree-1.3.0.gem
	deleted:    vendor/cache/arel-3.0.2.gem
	deleted:    vendor/cache/builder-3.0.4.gem
	deleted:    vendor/cache/hike-1.2.2.gem
	deleted:    vendor/cache/i18n-0.6.1.gem
	deleted:    vendor/cache/journey-1.0.4.gem
	deleted:    vendor/cache/jquery-rails-2.2.1.gem
	deleted:    vendor/cache/json-1.7.7.gem
	deleted:    vendor/cache/mail-2.5.3.gem
	deleted:    vendor/cache/mono_logger-1.0.1.gem
	deleted:    vendor/cache/multi_json-1.7.2.gem
	deleted:    vendor/cache/prototype-rails-3.2.1.gem
	deleted:    vendor/cache/rack-1.4.5.gem
	deleted:    vendor/cache/rack-cache-1.2.gem
	deleted:    vendor/cache/rack-ssl-1.3.3.gem
	deleted:    vendor/cache/rails-3.2.13.gem
	deleted:    vendor/cache/railties-3.2.13.gem
	deleted:    vendor/cache/rake-10.0.4.gem
	deleted:    vendor/cache/rdoc-3.12.2.gem
	deleted:    vendor/cache/redis-namespace-1.2.1.gem
	deleted:    vendor/cache/sinatra-1.3.6.gem
	deleted:    vendor/cache/sprockets-2.2.2.gem
	deleted:    vendor/cache/tilt-1.4.0.gem
	deleted:    vendor/cache/treetop-1.4.12.gem
	deleted:    vendor/cache/unicorn-4.6.2.gem
update to rails 4