Skip project name validation on edit.
Skip project name validation on edit.

If a project is new, validate the project name. If the project is not
new, skip the name validation because it cannot be changed.

tcmitchell/geni-portal,tcmitchell/geni-portal,tcmitchell/geni-portal,tcmitchell/geni-portal,tcmitchell/geni-portal,charliemeyer/geni-portal,charliemeyer/geni-portal,charliemeyer/geni-portal,charliemeyer/geni-portal,charliemeyer/geni-portal