TST: update adjustment tests - add gaps between sids
TST: update adjustment tests - add gaps between sids

TST: add a seed for permuting

humdings/zipline,Scapogo/zipline,bartosh/zipline,alphaBenj/zipline,enigmampc/catalyst,florentchandelier/zipline,quantopian/zipline,alphaBenj/zipline,Scapogo/zipline,bartosh/zipline,humdings/zipline,enigmampc/catalyst,florentchandelier/zipline,quantopian/zipline