DocBlock Updates

This release mostly contains DocBlock fixes to make PHPStan pass through level 7 (most errors that would require code changes, particularly signature changing changes, were added as phpstan ignores).

Autoloading config changed slightly (but only to remove an unnecessary include-path setting and change the loading of Doctrine.php from a files loader to a classmap).

PHP 7.2 support, rename package

v2.0.0

rename package so we can start making releases (#15)