Merge pull request #20 from skilld-labs/php84

PHP 8.4 compatibility

CBF.

Merge pull request #17 from alexpott/allow-psr-log-3

Allow psr/log ^3

Update composer.json

Merge pull request #13 from greg-1-anderson/server-instead-of-env

Fixes #9: Use $_SERVER instead of $_ENV for greater reliability.

Update README.md

Update README.md

Merge pull request #1 from greg-1-anderson/php54

Support PHP 5.4 and later.