MAINT: Put scipy back in travis reqs.
MAINT: Put scipy back in travis reqs.

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