Description:
Removed the vcenter_dc_name and vcenter_ipaddr
fields from the virtual_supervisor_module
table, the CiscoNexusVSMDeviceVO, addClusterCmd,
and all other references to these two fields.
Fixing null pointer exceptions when checking
for nexus related global parameter values in
addClusterCmd.
Conflicts:
api/src/com/cloud/api/commands/AddClusterCmd.java
15d0cf782a