0.4.0 - Progress

• Client::sendRequest — it works correctly now
• Client file serve improvements
• Client::curlRequest added to replace the old context method
• NotifyProgressInterface For clients listening to download progress.
• Client::registerProgressListener New event to track download progress.
• Request & Response generally improvements all over
• update : to latest psr interface versions
• fix : AbstractRequest now parses uri correctly (get complete url not just path) when none supplied
• update : Client::serveFile temporarily disables Dumper if it is found and enabled
• moved to a new document structure
• bring back inline with psr
• removed the deprecated fetch method.