Add support for PHP 8.1 (#82)

Update README.md

Add support for PHP 7.4 (#66)

* Add support for PHP 7.4

* Update README.md

* Remove php 5.6 and 7.1 from tests

* Remove php 5.6 and 7.1 from clean script

* Remove php 5.6 and 7.1 from travis setup

Merge pull request #61 from philcook/ikari7789-patch-1-1

Fix bash comparison

Merge pull request #57 from ikari7789/bugfix/fix-tests

Install initial packages via TravisCI

Merge pull request #57 from ikari7789/bugfix/fix-tests

Install initial packages via TravisCI

Merge pull request #42 from ikari7789/patch-1

Update for new PHP packages from Homebrew

Merge branch 'yemenifree-master'