Comment 55 for bug 1376600

The fixes for fuel library to go with Corosync 2 packages are: https://review.openstack.org/#/c/150012 and https://review.openstack.org/#/c/150775/

Please merge corosync, pacemaker, libqb, crmsh packages to the staging mirrors and adjust its fuellib-gerrit-commit parameter to include the former patches, otherwise staging bvt would fail.