Only build the master branch (and PRs) in travis
Only build the master branch (and PRs) in travis

chef-cookbooks/tomcat,yakara-ltd/tomcat,chef-cookbooks/tomcat,opscode-cookbooks/tomcat,yakara-ltd/tomcat,GannettDigital/chef-tomcat,nickptrvc/tomcat,Lianping/tomcat,Lianping/tomcat,GannettDigital/chef-tomcat,GannettDigital/chef-tomcat,opscode-cookbooks/tomcat,nickptrvc/tomcat,chef-cookbooks/tomcat,yakara-ltd/tomcat,opscode-cookbooks/tomcat,nickptrvc/tomcat,Lianping/tomcat