Annotated Gemfile
## Backgroud jobs, queue ---------------------------
gem "daemons", "1.2.4" # Aug 2016
gem "delayed_job", "4.1.3" # May 2017
gem "delayed_job_active_record", "4.1.2" # May 2017
gem "delayed_job_web", "1.4" # May 2017
gem "stomp", "1.4.4" # Jun 2017
## Logs, metrics -----------------------------------
gem "grape_logging", "1.5.0" # May 2017
gem "lograge", "0.5.1" # May 2017
gem "logstash-event", "1.2.02" # Sep 2013