<oo-accept-node> Bug 1000174 - oo-accept-node fixes

https://bugzilla.redhat.com/show_bug.cgi?id=1000174

In check_cgroups_procs: Convert uid string values to integer before
comparisons, test for all defined cgroups controllers (not just all or
memory)

Change $USERS to a hash with key uid instead of an array

Remove unnecessary call to $USERS.dup