Add spring-commands-rspec gem back
Add http_accept_language gem
Change how to set locale, params[:locale] > cookies > http header
Update routes with optional locale params
change  locale
Add example code for CLD.detect_language
Change how to set locale, separate it from language

I was confused with the 2 concepts: locale and language. One to
determine the language for the appearance of the site, one is for
which language quotes to show to users.
Add spec for showing quotes in preferred language
Remove http_accept_language, do it manually
Set locale and show quotes by browser langauge
Add language quotes links back for now
Merge pull request #65 from kinopyo/chore/20131228/separate_locale

Separate locale and language