Update .travis.yml
Update .travis.yml

Former-commit-id: 25a3f141d8d7ecc61d4275779a9057e05d7a1390
apavlo/peloton,malin1993ml/peloton,yingjunwu/peloton,jessesleeping/iso_peloton,vittvolt/peloton,seojungmin/peloton,prashasthip/peloton,cmu-db/peloton,prashasthip/peloton,yingjunwu/peloton,vittvolt/15721-peloton,vittvolt/peloton,wangziqi2016/peloton,seojungmin/peloton,vittvolt/peloton,phisiart/peloton-p3,PauloAmora/peloton,ShuxinLin/peloton,phisiart/peloton-p3,PauloAmora/peloton,apavlo/peloton,ShuxinLin/peloton,AllisonWang/peloton,cmu-db/peloton,vittvolt/peloton,seojungmin/peloton,eric-haibin-lin/peloton-1,cmu-db/peloton,AngLi-Leon/peloton,ShuxinLin/peloton,phisiart/peloton-p3,malin1993ml/peloton,vittvolt/15721-peloton,wangziqi2016/peloton,AllisonWang/peloton,AngLi-Leon/peloton,haojin2/peloton,AllisonWang/peloton,seojungmin/peloton,prashasthip/peloton,malin1993ml/peloton,jessesleeping/iso_peloton,yingjunwu/peloton,jessesleeping/iso_peloton,AngLi-Leon/peloton,wangziqi2016/peloton,eric-haibin-lin/peloton-1,apavlo/peloton,prashasthip/peloton,yingjunwu/peloton,jessesleeping/iso_peloton,yingjunwu/peloton,seojungmin/peloton,haojin2/peloton,jessesleeping/iso_peloton,haojin2/peloton,vittvolt/peloton,ShuxinLin/peloton,phisiart/peloton-p3,cmu-db/peloton,jessesleeping/iso_peloton,ShuxinLin/peloton,apavlo/peloton,haojin2/peloton,jessesleeping/iso_peloton,wangziqi2016/peloton,apavlo/peloton,PauloAmora/peloton,eric-haibin-lin/peloton-1,vittvolt/15721-peloton,haojin2/peloton,PauloAmora/peloton,AngLi-Leon/peloton,AngLi-Leon/peloton,vittvolt/15721-peloton,eric-haibin-lin/peloton-1,AllisonWang/peloton,phisiart/peloton-p3,malin1993ml/peloton,cmu-db/peloton,apavlo/peloton,prashasthip/peloton,eric-haibin-lin/peloton-1,ShuxinLin/peloton,yingjunwu/peloton,AllisonWang/peloton,PauloAmora/peloton,wangziqi2016/peloton,seojungmin/peloton,phisiart/peloton-p3,malin1993ml/peloton,eric-haibin-lin/peloton-1,AngLi-Leon/peloton,cmu-db/peloton,wangziqi2016/peloton,malin1993ml/peloton,vittvolt/15721-peloton,AllisonWang/peloton,vittvolt/15721-peloton,prashasthip/peloton,vittvolt/peloton,PauloAmora/peloton,haojin2/peloton