Add ruby 2.1.0 to build matrix
Add ruby 2.1.0 to build matrix

Kosmas/cucumber-rails,cucumber/cucumber-rails,zillou/cucumber-rails,analog-analytics/cucumber-rails,zillou/cucumber-rails,ipmobiletech/cucumber-rails,Kosmas/cucumber-rails,cucumber/cucumber-rails,ipmobiletech/cucumber-rails,analog-analytics/cucumber-rails,cucumber/cucumber-rails