Replicate the node list in ssconf
Replicate the node list in ssconf

This patch adds node_list in the list of replicated values from
ConfigWriter.

Reviewed-by: imsnah

bitemyapp/ganeti,apyrgio/ganeti,yiannist/ganeti,onponomarev/ganeti,grnet/snf-ganeti,dimara/ganeti,andir/ganeti,apyrgio/snf-ganeti,grnet/snf-ganeti,dimara/ganeti,yiannist/ganeti,ganeti/ganeti,leshchevds/ganeti,andir/ganeti,mbakke/ganeti,apyrgio/ganeti,ganeti/ganeti,ganeti/ganeti,mbakke/ganeti,bitemyapp/ganeti,ganeti-github-testing/ganeti-test-1,yiannist/ganeti,mbakke/ganeti,apyrgio/snf-ganeti,leshchevds/ganeti,ganeti-github-testing/ganeti-test-1,onponomarev/ganeti,andir/ganeti,leshchevds/ganeti