webui: Disable no-quorum-policy option when there are not enough nodes

If the cluster has less than two nodes, then the no-quorum-policy must
be forced to "ignore" and we also disable the select widget for it.

Since we know that there will always be a node with the founder role,
the condition is really on the number of non-founder nodes.
Remove input-sm from class of the td containing the parameter

This made the text smaller than it should be.
Adapt attributes created by crowbar for per-node STONITH

For per-node STONITH, we have a hash where the keys are the FQDNs of
each cluster member. It turns out that when configuring the resources in
pacemaker, what we are using is actually the hostnames of each cluster
member (ie, FQDN without the domain name).

So we translate what crowbar gives us to what pacemaker expects.