Added vmware? test

Added a virtualization test to determine if the node is running under
VMWare
Revert "Added vmware? test"

This reverts commit 8bcd014b8065c8094307a62de08f8c8cf4a0f2a1.
Added vmware? test

Added a virtualization test to determine if the node is running under
VMWare
Added test case for vmware?

Updated the virtualization_spec tests to include vmware?
Merge pull request #56 from robcoward/vmware_virtualizarion

Vmware virtualization