Update minitest dependency to 5.4.1
Update sprockets-rails dependency to 2.1.4
Ignore more Homebrew specific errors
Update rspec-rails dependency to 3.1.0
Re-enable Moped logging in development
Update airbrake dependency to 4.1.0
Update newrelic_rpm dependency to 3.9.4.245
Update rspec-core dependency to 3.1.2
Update tins dependency to 1.3.2