Add text and refresh link to loadcert.
Add text and refresh link to loadcert.

When a user does not yet have a certificate, explain what they need to
do and provide a refresh link so they can move to the next step.

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