Merge pull request #53 from zenoss/feature/cluster

Cluster detection and minor bug fixes
Merge pull request #54 from zenoss/feature/cluster

Updated to support MSSQL2008 systems
Support "Add Multiple Devices".

Replace the "Windows (WMI)" device type from WindowsMonitor with one for
this ZenPack if it already exists. Otherwise, just add ours.
Minor cluster updates.
Merge branch 'feature/devtype' of github.com:zenoss/ZenPacks.zenoss.Microsoft.Windows into feature/cluster
Cluster services and resources are being modeled.

Problem with cluster resources showing up in the model. The data is being returned
and mapped back in process but does not correctly apply to relationship.