add upstart jobs for RHEL6
    
    alternative to sysv initscript, only one can be enabled!
    Disable sysv initscripts, before using upstart jobs:
    
     service $SERVICE stop
     chkconfig $SERVICE off
    
    Install upstart job:
    
     cp /usr/share/openstack-swift/$SERVICE.upstart \
        /etc/init/$SERVICE.conf
     initctl reload-configuration
     initctl start $SERVICE