allow hyphen and underscore in remove_bad_chars so all chars that are legal in project and slice names can be preserved, so 2 saved slice credentials don't step on each other
allow hyphen and underscore in remove_bad_chars so all chars that are legal in project and slice names can be preserved, so 2 saved slice credentials don't step on each other

plantigrade/geni-tools,ahelsing/geni-tools,ahelsing/geni-tools,plantigrade/geni-tools,tcmitchell/geni-tools,tcmitchell/geni-tools