Merge pull request #156 from func0der/allow-newest-symfony-libraries

Update CHANGELOG.md

[allow-newest-symfony-libraries] Do not test with 7.0 in travis.

[allow-newest-symfony-libraries] Drop 7.0 support.

[allow-newest-symfony-libraries] Go back to phpunit 6.0 to have support for php7.0.

[allow-newest-symfony-libraries] Update to phpunit ^7.0.

[allow-newest-symfony-libraries] Use newest symfony components in tests, too.

[allow-newest-symfony-libraries] Update CHANGELOG.md.

[allow-newest-symfony-libraries] Drop support for PHP5.

[allow-newest-symfony-libraries] Allow newest versions of symfony components.

Merge pull request #148 from aynsix/PHRAS-2331-zippy-php7-1

minimum version symfony/process

update minimum version of symfony/process

test

test