Issue #164: Do basic validation of the tutorial organizer name (non empty) and email (pass PHP FILTER_VALIDATE_EMAIL)
Issue #164: Do basic validation of the tutorial organizer name (non empty) and email (pass PHP FILTER_VALIDATE_EMAIL)

tcmitchell/geni-ar,GENI-NSF/geni-ar,GENI-NSF/geni-ar,tcmitchell/geni-ar,tcmitchell/geni-ar,tcmitchell/geni-ar,GENI-NSF/geni-ar,GENI-NSF/geni-ar,tcmitchell/geni-ar,GENI-NSF/geni-ar