language: php
install: composer install
php:
  - '5.4'
  - '5.5'
  - '5.6'
  - '7.0'
script: phpunit --configuration tests/phpunit.xml

language: php
install: composer install --no-dev
php:
  - '5.5'
  - '5.6'
  - '7.0'
script: phpunit --configuration tests/phpunit.xml

Remove 5.4 from build targets & add --no-dev flag.
Remove 5.4 from build targets & add --no-dev flag.
