Update coffee-rails to version 4.0.0
Update guard to version 1.8.0
Update guard-rspec to version 2.5.4
Update listen to version 1.0.2
Update rspec-core to version 2.13.1
Update rspec-rails to version 2.13.1
Update rspec-mocks to version 2.13.1
Update sass to version 3.2.8
Update shoulda-matchers to version 2.0.0
Update tilt to version 1.3.7
Update uglifier to version 2.0.1