message: chore(travis): use $TRAVIS_BUILD_DIR in deploy script
diff: #!/bin/bash
  -ROOT=$(dirname $(readlink -f $0))/..
  -
  eval "$(ssh-agent -s)" # Start ssh-agent cache
  -chmod 600 .travis/id_rsa # Allow read access to the private key
  -ssh-add .travis/id_rsa # Add the private key to SSH
  +chmod 600 $TRAVIS_BUILD_DIR/.travis/id_rsa # Allow read access to the private key
  +ssh-add $TRAVIS_BUILD_DIR/.travis/id_rsa # Add the private key to SSH
  git config --global push.default matching
  git remote add origin ssh://git@github.com/taye/interact.js.git
  