This pr makes the library ready to be submitted to Packagist with its new name.
Changed package name in composer.json and its reference in README
Moved CI tests from Travis to Github actions
Dropped Scrutinizer integration (can still be added again later on a new account, if wanted)
Heads up! I already dropped support for PHP 5.6 here as the test matrix actually did not work with the older versions. I invested about 30 minutes into trying to fix it but failed. If anybody actually still uses PHP 5.6, they can still fetch the old library from z38 imo.
This pr makes the library ready to be submitted to Packagist with its new name.
composer.jsonand its reference inREADMEz38imo.