Add rack-mini-profiler but disable it by default
Add puma and configuration files
Add rubocup with configration file
Fix rubocup errors
Update gems
Define log level and enable serving assets in production
Ignore asset files in public
Add lograge and configuration file
Add Fluentd
Add config file for rails_best_practices
Remove unused file
Merge branch 'develop'
Update rails to 4.2
Merge branch 'develop'
Remove fluentd
Minor change for fluentd host
Merge branch 'develop'