TST: add assert_equal dispatch for other ndframe objects
TST: add assert_equal dispatch for other ndframe objects

magne-max/zipline-ja,Scapogo/zipline,alphaBenj/zipline,humdings/zipline,bartosh/zipline,florentchandelier/zipline,bartosh/zipline,Scapogo/zipline,alphaBenj/zipline,humdings/zipline,quantopian/zipline,florentchandelier/zipline,enigmampc/catalyst,quantopian/zipline,magne-max/zipline-ja,enigmampc/catalyst