[docs] Add run to docs

Update child repos to PSR-4 for git subs-plit

Fix http-client requirement for socket-client

[SocketClient] Rename Connector::createTcp to Connector::create

Merge branch 'unused-code' of github.com:reactphp/react

[HttpClient] Call dns properly with promises, use promises internally

Fix branch aliases of subtree splits to be 0.2-dev

Fix typo in http-client component composer.json