Use coveralls which is the same thing used in other repos

.travis.yml

@@ -5,8 +5,10 @@ services:
 - docker
 env:
 - OS_NAME: linux
+before_script:
+- go get golang.org/x/tools/cmd/cover
+- go get github.com/mattn/goveralls
 script:
 - ./build.sh _travis-${TRAVIS_OS_NAME}
+- $GOPATH/bin/goveralls -coverprofile=coverage.cov -service=travis-ci
 - ./scripts/travis_test.sh
-after_success:
-- bash <(curl -s https://codecov.io/bash)

build.sh

@@ -51,7 +51,7 @@ elif [ "$1" = "_travis-linux" ]; then
   set -x
   $0 linux
   docker run -v `pwd`:/oonibuild -w /oonibuild -t oonibuild                    \
-    go test -v -coverprofile=coverage.txt -covermode=atomic ./...
+    go test -v -coverprofile=coverage.cov -covermode=atomic ./...
 
 elif [ "$1" = "_travis-osx" ]; then
   set -x
@@ -60,7 +60,7 @@ elif [ "$1" = "_travis-osx" ]; then
   brew upgrade
   brew install measurement-kit
   $0 macos
-  go test -v -coverprofile=coverage.txt -covermode=atomic ./...
+  go test -v -coverprofile=coverage.cov -covermode=atomic ./...
 
 elif [ "$1" = "help" ]; then
   echo "Usage: $0 linux | macos | release | windows"