Add support for Guzzle 7 and PHP 7.1-7.4
Changes:
- Add support for Guzzle 7 (we keep supporting Guzzle 6 as well) (#73)
- Add support for PHP 7.1 - 7.4 (#73)
- Drop support for PHP 5.5 and 5.6
Minor fixes:
- Add
composer.lock
to.gitignore
- Cleanup
.travis.yml
and switch toxenial
dist - Update
PHPUnit
to^6.0
and fix risky tests
Big thanks to @svycka for sending the PR!