Let ruby version float in travis
Let ruby version float in travis

kirinse/firewall,chef-cookbooks/firewall,itmustbejj/firewall,johnbellone/firewall-cookbook,bincentvaret/firewall,kirinse/firewall,itmustbejj/firewall,glenjamin/firewall,williamsjj/firewall,johnbellone/firewall-cookbook,bincentvaret/firewall,opscode-cookbooks/firewall,hemalvarambhia/firewall,chef-cookbooks/firewall,glenjamin/firewall,crossroads/firewall,opscode-cookbooks/firewall,williamsjj/firewall,crossroads/firewall,hemalvarambhia/firewall