[DO NOT MERGE] Migration from thin to mod_messanger

DO NOT MERGE 
This change require not yet released selinux-policy (will be in RHEL6.4) and we need it even in build time (which will not happen till release).
So I'm putting this on back burner till RHEL 6.4 is released. It is 99% finished and works for me, but without selinux this does not have sense.
I'm putting it here so it will not be forgotten, but do not expect any progress here for some time.
DO NOT MERGE