accounts,groups,policykit: Add polkitd for policykit

Create /var/lib/polkit-1 and set as home directory for user polkitd.
See http://forums.gentoo.org/viewtopic-t-926142-start-0.html

$ sudo telinit run smgl-messagebus restart
...
Unknown username "polkitd" in message bus configuration file

I am unsure if polkituser is still required

1 files changed, 1 insertions, 0 deletions

diff --git a/groups b/groups
index 17c0b76d13..99c36c22ad 100755
--- a/groups
+++ b/groups
@@ -121,5 +121,6 @@ bumblebee:193:
 burp:194:
 ratbox:195:
 mdm:196:
+polkitd:197:
 users:1000:
 nogroup:65534: