coverage: Shift to codecov in Travis CI.
coverage: Shift to codecov in Travis CI.

shubhamdhama/zulip,Galexrt/zulip,punchagan/zulip,rht/zulip,amanharitsh123/zulip,jackrzhang/zulip,zulip/zulip,brockwhittaker/zulip,tommyip/zulip,rishig/zulip,jrowan/zulip,vabs22/zulip,brockwhittaker/zulip,zulip/zulip,rishig/zulip,brainwane/zulip,timabbott/zulip,punchagan/zulip,rishig/zulip,amanharitsh123/zulip,mahim97/zulip,timabbott/zulip,verma-varsha/zulip,tommyip/zulip,Galexrt/zulip,shubhamdhama/zulip,Galexrt/zulip,andersk/zulip,showell/zulip,punchagan/zulip,mahim97/zulip,amanharitsh123/zulip,dhcrzf/zulip,showell/zulip,hackerkid/zulip,synicalsyntax/zulip,jackrzhang/zulip,Galexrt/zulip,kou/zulip,showell/zulip,timabbott/zulip,shubhamdhama/zulip,jackrzhang/zulip,dhcrzf/zulip,mahim97/zulip,brockwhittaker/zulip,punchagan/zulip,kou/zulip,synicalsyntax/zulip,jrowan/zulip,shubhamdhama/zulip,punchagan/zulip,Galexrt/zulip,synicalsyntax/zulip,rht/zulip,showell/zulip,jackrzhang/zulip,vaidap/zulip,zulip/zulip,amanharitsh123/zulip,andersk/zulip,hackerkid/zulip,rht/zulip,shubhamdhama/zulip,rht/zulip,shubhamdhama/zulip,synicalsyntax/zulip,synicalsyntax/zulip,rht/zulip,tommyip/zulip,tommyip/zulip,vabs22/zulip,timabbott/zulip,brainwane/zulip,dhcrzf/zulip,dhcrzf/zulip,hackerkid/zulip,showell/zulip,synicalsyntax/zulip,andersk/zulip,showell/zulip,rishig/zulip,synicalsyntax/zulip,brainwane/zulip,brockwhittaker/zulip,eeshangarg/zulip,kou/zulip,mahim97/zulip,zulip/zulip,andersk/zulip,tommyip/zulip,eeshangarg/zulip,jackrzhang/zulip,brainwane/zulip,rht/zulip,timabbott/zulip,punchagan/zulip,verma-varsha/zulip,hackerkid/zulip,mahim97/zulip,rishig/zulip,dhcrzf/zulip,eeshangarg/zulip,verma-varsha/zulip,andersk/zulip,showell/zulip,zulip/zulip,kou/zulip,zulip/zulip,rishig/zulip,hackerkid/zulip,rishig/zulip,brainwane/zulip,jrowan/zulip,brainwane/zulip,hackerkid/zulip,andersk/zulip,zulip/zulip,vaidap/zulip,vaidap/zulip,verma-varsha/zulip,brainwane/zulip,vabs22/zulip,eeshangarg/zulip,tommyip/zulip,jrowan/zulip,eeshangarg/zulip,vabs22/zulip,vaidap/zulip,eeshangarg/zulip,jrowan/zulip,amanharitsh123/zulip,Galexrt/zulip,mahim97/zulip,Galexrt/zulip,kou/zulip,vaidap/zulip,amanharitsh123/zulip,tommyip/zulip,hackerkid/zulip,dhcrzf/zulip,dhcrzf/zulip,jackrzhang/zulip,vabs22/zulip,brockwhittaker/zulip,andersk/zulip,rht/zulip,brockwhittaker/zulip,verma-varsha/zulip,timabbott/zulip,verma-varsha/zulip,kou/zulip,jackrzhang/zulip,vaidap/zulip,eeshangarg/zulip,jrowan/zulip,timabbott/zulip,kou/zulip,shubhamdhama/zulip,punchagan/zulip,vabs22/zulip