Fix: systemd: Convince clang that 'op' is not NULL
 High: pengine: exclusive discovery implies rsc is only allowed on exclusive subset of nodes
Low: pengine: updates regression tests
Feature: crm_resource: Implement an intelligent restart capability
Test: cts: sbd patterns to ignore
Merge pull request #605 from davidvossel/master

resource-discovery=exclusive implies rsc can only run on exclusive subset of nodes
Merge branch 'master' of github.com:ClusterLabs/pacemaker