Update cucumber to version 1.3.15
Update cucumber-rails to version 1.4.1
Update rack-maintenance to version 1.2.0
Update librato-rack to version 0.4.5
Update net-ssh to version 2.9.1
Update net-scp to version 1.2.1
Update nokogiri to version 1.6.2.1
Update shoulda-matchers to version 2.6.1
Update dalli to version 2.7.1
Update safe_yaml to version 1.0.3
Update webmock to version 1.18.0
Update unicorn to version 4.8.3