v3.3.0
Udate README
Fix docs: Passing an array to Connection->send() is not possible anymore
Merge pull request #1 from marcelklehr/develop

Update from origin
Adding options to set/override request headers in WebSocket.
Merge pull request #45 from marcelklehr/dev-websocket-options

Adding possibility to set websocket options
3.4.0
Merge remote-tracking branch 'upstream/master'