composer global require "squizlabs/php_codesniffer=*"
sudo ln -s /home/travis/.config/composer/vendor/bin/phpcs /usr/bin/
+composer global require "phpunit/phpunit=7.*"
+sudo ln -s /home/travis/.config/composer/vendor/bin/phpunit /usr/bin/
+
sudo -u postgres createuser -S www-data
# Make sure that system servers can read from the home directory: