ruby 2.1.4

[#67]
auto suggest some artists

no tests yet

[fixes #27]
change defaults
JS style checking via houndci.com
remove console.log()s
tweaks

* fix submitting one of the suggestions
* try to make errors have 404 status but not working
* reword some stuff
* allman brothers
tweak suggestions

[#27]
typo

[#27]
remove more console.log()s
more artist suggestions

[#27]
alphabetize
spinner

[#38]
update some deps
remove gemsurance
travis do migrations
use CodeClimate's test coverage