pcmanus/ccm — pull request #139 by ptnapoleon (2014-08-04 21:42:11+00:00)
Title: Check node version before cluster

When updating the config files,specifically the logfiles, it is
important to check the node version before the cluster
version. This allows us to upgrade only a subset of nodes.
Otherwise we will see errors when upgrading from 2.0 -> 2.1
because of the change to logback