Merge pull request #2 from joshteng/nginx-unicorn

Add Nginx and Unicorn config files
add routing specs
speed up spec with zeus
add instruction on using zeus in readme
pending lead#add_to_mailchimp spec
add lead should call add_lead_to_mailchimp and send_welcome_email specs and documented how spec for add_lead_to_mailchimp should be tested
move figaro to all environments to load application.yml in production as well
misc code comments and add gemnasium badge to readme
remove turbolinks
update uglifier
update sucker punch
update jquery-rails
update bootstrap sass
update selenium-webdriver
test #add_lead_mail_chimp
add rake task to delete mailchimp list for test
update readme
refactor method name Lead#add_lead_to_mailchimp to Lead#add_to_mailchimp
use VCR for API related specs
VCR config to disable prevention of codeclimate data