Make slave_exe resource only get created if it is missing.
Make slave_exe resource only get created if it is missing.

j-c-h-e-n-g/jenkins,dshvedchenko/jenkins,umar85/jenkins,rexut/opscode-cookbooks-jenkins,mknapik/jenkins,gshively11/jenkins,Piousbox-cookbooks/jenkins,autoclone/jenkins-cookbook,Sauraus/jenkins,autoclone/jenkins,Sauraus/jenkins,dshvedchenko/jenkins,martinb3-cookbooks/jenkins,Tiger66639/jenkins,Tiger66639/jenkins,daften/cookbook-jenkins,martinb3-cookbooks/jenkins,StephenKing/chef-cookbook-jenkins,j-c-h-e-n-g/jenkins,samdunne/jenkins,StephenKing/chef-cookbook-jenkins,autoclone/jenkins-cookbook,autoclone/jenkins-cookbook,Sauraus/jenkins,rexut/opscode-cookbooks-jenkins,Tiger66639/jenkins,Piousbox-cookbooks/jenkins,RobertNorthard/jenkins,samdunne/jenkins,mknapik/jenkins,autoclone/jenkins,StephenKing/chef-cookbook-jenkins,rexut/opscode-cookbooks-jenkins,juliandunn/jenkins,daften/cookbook-jenkins,samdunne/jenkins,gshively11/jenkins,chef-cookbooks/jenkins,autoclone/iptables,RobertNorthard/jenkins,Dispader/jenkins,chef-cookbooks/jenkins,juliandunn/jenkins,b-dean/jenkins,martinb3-cookbooks/jenkins,opscode-cookbooks/jenkins,mknapik/jenkins,gshively11/jenkins,autoclone/iptables,autoclone/jenkins,b-dean/jenkins,autoclone/iptables,opscode-cookbooks/jenkins,juliandunn/jenkins,dshvedchenko/jenkins,j-c-h-e-n-g/jenkins,Dispader/jenkins,chef-cookbooks/jenkins,daften/cookbook-jenkins,b-dean/jenkins,Dispader/jenkins,Piousbox-cookbooks/jenkins,RobertNorthard/jenkins,umar85/jenkins,opscode-cookbooks/jenkins,umar85/jenkins