tweaks to generation of foreman_client.sh.

* install rubygems from foreman repo for now to meet that dependency
  requirement.
* call "puppet agent" twice so that when we start the service, it
  should be fully initialized (cert pulled down and known to the
  puppet server).

foreman_server.sh

@@ -110,6 +110,7 @@ yum-config-manager --enable rhel-6-server-optional-rpms
 yum clean all
 
 # install dependent packages
+yum install -y http:https://yum.theforeman.org/releases/latest/el6/x86_64/rubygems-1.8.10-1.el6.noarch.rpm
 yum install -y augeas puppet git policycoreutils-python
 
 # Set PuppetServer
@@ -127,6 +128,8 @@ fi
 
 # check in to foreman
 puppet agent --test
+sleep 1
+puppet agent --test
 
 /etc/init.d/puppet start
 EOF