machine:
  node:
    version: v0.10.38

test:
  override:
    - npm run lint
    - karma start ./karma.conf.js --single-run --reporters coverage,junit
    - cat ${CIRCLE_ARTIFACTS}/coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js

machine:
  node:
    version: v0.10.38

test:
  override:
    - npm run lint
    - COVERAGE=1 karma start ./karma.conf.js --single-run --reporters coverage,junit
    - cat ${CIRCLE_ARTIFACTS}/coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js

Add COVERAGE env for CircleCI
Add COVERAGE env for CircleCI
