Add optional loading of sfcred from KM.
Add optional loading of sfcred from KM.

Unused feature to pass SF cred from KM to keep code path alive. Also
do auto-click in timeout to allow web page to load before leaving it.

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