[PATCH 3/3] cr: add selinux support (v4)

[Serge E. Hallyn]

Quoting Serge E. Hallyn (serue at us.ibm.com):
> Quoting Oren Laadan (orenl at librato.com):
> > Please place this (and a few others also in other patches) debug-only
> > changes in a separate patch - it will make my life tremendously easier
> > when merging v18-dev to a nice and clean v19.
> 
> Ok, I'll resend those just to containers@ to spare the lsm folks.

Oops, I was thinking this was the patch 1/3.  I won't spare the
lsm folks from revised patches 2/3 or 3/3 :)

-serge