message: MINOR: Switch travis ci script to yarn as a workaround for npm registry issues.
diff: @@ -21,7 +21,7 @@ env:
  before_install:
  - curl -o- -L https://yarnpkg.com/install.sh | bash -s -- --version 1.13.0
  - export PATH="$HOME/.yarn/bin:$PATH"
  - - npm install codecov -g
  + - yarn global add codecov
  jobs:
  include:
  