Set up and use New Relic

https://trello.com/c/WKSxzMlK/234-set-up-new-relic
Remove link to thoughtbot's style guide on homepage

Having a link to thoughtbot's style guide obscures that hound is
configurable.

https://github.com/thoughtbot/hound/issues/203
https://trello.com/c/wYwsF46g
Minor rule updates

* Test method chaining
* Enable IndentationConsistency rule
* Remove remaining pending tests
Test named arguments
add timestamps to repos and memberships
Add indexes

* Add index to users for remember_token
* Add index to repos for active
* Add unique index to repos for github_id
Use Resque instead of DelayedJob

https://trello.com/c/adsxS8Sv/197-use-resque

* Create JobQueue to abstract queue choice
Tell Travis to use redis
drop repo.name and remove from code
rename repo if name changed on github
Add QUEUE env var in sample.env
GitHub IDs aren't unique
Update user email address with GitHub email

https://trello.com/c/d6uJF9Q6/192-collect-user-emails-when-they-authenticate
Don't fetch emails until migration has run
Revert "Don't fetch emails until migration has run"

This reverts commit e073c655a694e13adb670961af12c8157a458577.
move placeholder text into i18n
add organization and repo reports
Test failure cases for formatting style rules