language: php
php:
  - 5.5
  - 5.4
  - hhvm
install:
  - composer install
script: phpunit

language: php
php:
  - 5.5
  - 5.4
  - hhvm
install:
  - echo "{'require': {'psr/log': '~1.0', 'monolog/monolog': '1.9.1'}}" > composer.json
  - composer install
script: phpunit

Update Travis settings file. Add composer.json file for install.
Update Travis settings file. Add composer.json file for install.
