The url which is used for communicating with govmomi should not include
port number. A port number other than 443 will result in 404 error.
VCenterPort stays in VSphereConfig structure for backward compatibility.
addressed review comments
Addressed review comment for pv_reclaimpolicy.go to verify content of the volume
addressed 2nd round of review comments
addressed 3rd round of review comments from jeffvance
