vzctl: make dists/scripts/gentoo* openrc compatible

In gentoo there is new init system: openrc. Patch supplied makes vzctl gentoo
scripts workable both with old baselayout-1.x (which included init sytem) and
newer openrc.

But notice: this patch modifies network setup. Now instead of using FAKEGATEWAY
I use just "default dev venet0". I've tried to describe situation and ask
question here:
http://forum.openvz.org/index.php?t=msg&goto=32775
http://www.mail-archive.com/devel@openvz.org/msg11013.html
and somewhere else, which search did not revealed, and on irc. So currently
I've commited vzctl with this patch in Gentoo, but still I'm interested in what
upstream think on this solution.

http://bugzilla.openvz.org/1046

[kir@openvz.org: VE->CT; minor typos fixed; use rc-update in set_ugid_quota.sh]
4 files changed