Bug 11948 - Cannot add a new OVM host to an existing OVM cluster
Bug 11699 - OVM - add host previously used in other OVM cluster > host went to alert state> host cleanup procedure needed
status 11933: resolve fixed
status 11948: resolve fixed
status 11699: resolve fixed
replace ovs-agent ocfs2 functions with our implementation.
ovs-agent's implementation doesn't check error condition, it can only run if everything is correct.
we also add check for used host without clean up, clean up procedure will print out as error message
reviewed-by: edison
frank
frank