PHP Version Requirement is now 5.5 (because of dependency change)

[Patabugen]

zendframework/zend-authentication as of version 5.2.2 required PHP 5.5, so slim-auth will need to either be more specific about the zend-authentication version (5.2.1 is OK) or update it's own PHP minimum version.

Compare:
https://packagist.org/packages/zendframework/zend-authentication#2.5.2
https://packagist.org/packages/zendframework/zend-authentication#2.5.1

As a workaround for developers we can specify the Zend Auth version in our composer.json:

{
    "require": {
        "jeremykendall/slim-auth": "dev-master",
        "zendframework/zend-authentication" : "2.5.1",
    }
}