Update mime-types dependency to version 1.24
Update i18n dependency to version 0.6.4
Update multi_json dependency to version 1.7.9
Update rvm-capistrano dependency to version 1.4.4
Update librato-rails dependency to version 0.9.0
Update shoulda-context dependency to version 1.1.5
Update shoulda-matchers dependency to version 2.3.0
Update treetop dependency to version 1.4.15
Update fog dependency to version 1.15.0
Update puma dependency to version 2.5.1