Fix replace of legacy package.
Fix CI test dependencies and config.
Use PSR-0 classloader instead of classmap now.
Raise the dev-master alias to 3.0.x-dev.
Rework the copyright header.
Add the platform condition function.
Add draft of new condition parser.
Add unit and ci tests.
Add the composer.lock.
Merge commit '4e304cfe4023e9c20fc44b4bd4eeb462ce17e996'