Opt test/update_stream.py out of travis ci
Opt test/update_stream.py out of travis ci

test/update_stream.py is flaky and needs further investigation before
putting into travis ci.

enisoc/vitess,guokeno0/vitess,pivanof/vitess,mapbased/vitess,rnavarro/vitess,ptomasroos/vitess,atyenoria/vitess,michael-berlin/vitess,nurblieh/vitess,fengshao0907/vitess,mlc0202/vitess,fengshao0907/vitess,tirsen/vitess,netroby/vitess,dumbunny/vitess,yangzhongj/vitess,anusornc/vitess,skyportsystems/vitess,kmiku7/vitess-annotated,mlc0202/vitess,erzel/vitess,aaijazi/vitess,pivanof/vitess,guokeno0/vitess,mapbased/vitess,ptomasroos/vitess,applift/vitess,guokeno0/vitess,netroby/vitess,SDHM/vitess,cgvarela/vitess,tirsen/vitess,fengshao0907/vitess,AndyDiamondstein/vitess,guokeno0/vitess,AndyDiamondstein/vitess,kuipertan/vitess,mlc0202/vitess,dumbunny/vitess,xgwubin/vitess,HubSpot/vitess,alainjobart/vitess,tjyang/vitess,xgwubin/vitess,rnavarro/vitess,xgwubin/vitess,guokeno0/vitess,fengshao0907/vitess,sougou/vitess,davygeek/vitess,vitessio/vitess,aaijazi/vitess,erzel/vitess,applift/vitess,mattharden/vitess,anusornc/vitess,pivanof/vitess,sougou/vitess,tinyspeck/vitess,guokeno0/vitess,applift/vitess,alainjobart/vitess,atyenoria/vitess,tjyang/vitess,SDHM/vitess,sougou/vitess,xgwubin/vitess,mlc0202/vitess,michael-berlin/vitess,sougou/vitess,erzel/vitess,erzel/vitess,mapbased/vitess,nurblieh/vitess,kuipertan/vitess,dcadevil/vitess,nurblieh/vitess,rnavarro/vitess,vitessio/vitess,tirsen/vitess,tinyspeck/vitess,cgvarela/vitess,pivanof/vitess,cgvarela/vitess,dumbunny/vitess,kuipertan/vitess,tjyang/vitess,vitessio/vitess,dcadevil/vitess,mattharden/vitess,pivanof/vitess,ptomasroos/vitess,applift/vitess,dcadevil/vitess,rnavarro/vitess,cloudbearings/vitess,vitessio/vitess,anusornc/vitess,tjyang/vitess,tjyang/vitess,yaoshengzhe/vitess,cloudbearings/vitess,rnavarro/vitess,michael-berlin/vitess,sougou/vitess,guokeno0/vitess,applift/vitess,applift/vitess,mattharden/vitess,SDHM/vitess,tjyang/vitess,yangzhongj/vitess,aaijazi/vitess,davygeek/vitess,tinyspeck/vitess,anusornc/vitess,mlc0202/vitess,tinyspeck/vitess,alainjobart/vitess,guokeno0/vitess,kmiku7/vitess-annotated,enisoc/vitess,netroby/vitess,rnavarro/vitess,kuipertan/vitess,tirsen/vitess,dumbunny/vitess,cgvarela/vitess,tirsen/vitess,tirsen/vitess,aaijazi/vitess,mapbased/vitess,tirsen/vitess,davygeek/vitess,atyenoria/vitess,rnavarro/vitess,netroby/vitess,dumbunny/vitess,cloudbearings/vitess,HubSpot/vitess,tirsen/vitess,xgwubin/vitess,kuipertan/vitess,anusornc/vitess,nurblieh/vitess,kuipertan/vitess,fengshao0907/vitess,skyportsystems/vitess,fengshao0907/vitess,davygeek/vitess,yaoshengzhe/vitess,applift/vitess,kmiku7/vitess-annotated,dumbunny/vitess,dcadevil/vitess,cgvarela/vitess,sougou/vitess,SDHM/vitess,yaoshengzhe/vitess,mapbased/vitess,michael-berlin/vitess,yaoshengzhe/vitess,mlc0202/vitess,cgvarela/vitess,mapbased/vitess,enisoc/vitess,kmiku7/vitess-annotated,mlc0202/vitess,aaijazi/vitess,davygeek/vitess,michael-berlin/vitess,atyenoria/vitess,skyportsystems/vitess,cloudbearings/vitess,enisoc/vitess,mapbased/vitess,michael-berlin/vitess,HubSpot/vitess,SDHM/vitess,HubSpot/vitess,skyportsystems/vitess,ptomasroos/vitess,SDHM/vitess,cgvarela/vitess,kmiku7/vitess-annotated,michael-berlin/vitess,dcadevil/vitess,SDHM/vitess,mahak/vitess,HubSpot/vitess,pivanof/vitess,tirsen/vitess,erzel/vitess,mahak/vitess,kmiku7/vitess-annotated,HubSpot/vitess,michael-berlin/vitess,tjyang/vitess,mlc0202/vitess,yangzhongj/vitess,aaijazi/vitess,mattharden/vitess,skyportsystems/vitess,mattharden/vitess,erzel/vitess,kuipertan/vitess,atyenoria/vitess,ptomasroos/vitess,yaoshengzhe/vitess,cloudbearings/vitess,pivanof/vitess,guokeno0/vitess,erzel/vitess,atyenoria/vitess,michael-berlin/vitess,AndyDiamondstein/vitess,mahak/vitess,vitessio/vitess,xgwubin/vitess,kmiku7/vitess-annotated,mattharden/vitess,ptomasroos/vitess,yangzhongj/vitess,fengshao0907/vitess,enisoc/vitess,erzel/vitess,yaoshengzhe/vitess,SDHM/vitess,anusornc/vitess,dumbunny/vitess,netroby/vitess,nurblieh/vitess,kmiku7/vitess-annotated,alainjobart/vitess,yaoshengzhe/vitess,AndyDiamondstein/vitess,pivanof/vitess,AndyDiamondstein/vitess,erzel/vitess,alainjobart/vitess,ptomasroos/vitess,anusornc/vitess,mattharden/vitess,nurblieh/vitess,kuipertan/vitess,aaijazi/vitess,AndyDiamondstein/vitess,xgwubin/vitess,aaijazi/vitess,nurblieh/vitess,rnavarro/vitess,atyenoria/vitess,tjyang/vitess,netroby/vitess,netroby/vitess,atyenoria/vitess,SDHM/vitess,cloudbearings/vitess,rnavarro/vitess,davygeek/vitess,vitessio/vitess,yaoshengzhe/vitess,vitessio/vitess,alainjobart/vitess,AndyDiamondstein/vitess,mapbased/vitess,yangzhongj/vitess,pivanof/vitess,tinyspeck/vitess,yangzhongj/vitess,dcadevil/vitess,cloudbearings/vitess,skyportsystems/vitess,mattharden/vitess,yangzhongj/vitess,fengshao0907/vitess,mahak/vitess,dumbunny/vitess,nurblieh/vitess,tinyspeck/vitess,dumbunny/vitess,alainjobart/vitess,ptomasroos/vitess,dcadevil/vitess,skyportsystems/vitess,davygeek/vitess,alainjobart/vitess,applift/vitess,xgwubin/vitess,AndyDiamondstein/vitess,enisoc/vitess,applift/vitess,xgwubin/vitess,yaoshengzhe/vitess,cgvarela/vitess,fengshao0907/vitess,netroby/vitess,nurblieh/vitess,AndyDiamondstein/vitess,mattharden/vitess,applift/vitess,ptomasroos/vitess,enisoc/vitess,mlc0202/vitess,skyportsystems/vitess,yangzhongj/vitess,sougou/vitess,skyportsystems/vitess,mahak/vitess,erzel/vitess,tjyang/vitess,mapbased/vitess,cloudbearings/vitess,kuipertan/vitess,HubSpot/vitess,atyenoria/vitess,aaijazi/vitess,dumbunny/vitess,mahak/vitess,vitessio/vitess,mattharden/vitess,tinyspeck/vitess,mapbased/vitess,HubSpot/vitess,anusornc/vitess,cgvarela/vitess,netroby/vitess,cloudbearings/vitess,sougou/vitess,mahak/vitess,mahak/vitess,yangzhongj/vitess,anusornc/vitess,kmiku7/vitess-annotated