http-client-branch: typo

http-client-branch: (WebSocket) alleviated heavy use of {@code WebSocket} in the javadoc; more details on Listener methods

http-client-branch: minor HttpClient.send exception correction

http-client-branch: minor WebSocket.Listener re-wording

http-client-branch: (WebSocket) API wording for back-pressure

http-client-branch: (WebSocket) remove close timer

http-client-branch: RawChannel implementation based on FlowTube

http-client-branch: (WebSocket) split pending operations tests, otherwise it took them too long to run

http-client-branch: (WebSocket) full-duplex DummyWebSocketServer; tests stabilization & fixes

http-client-branch: (WebSocket) autopong on a closed channel is not an error + test

http-client-branch: (WebSocket) no error after abort

http-client-branch: (WebSocket) abort tests

http-client-branch: (WebSocket) removed MessagePart

http-client-branch: (HttpClient) faulty assertion, some tests fail

http-client-branch: (WebSocket) API changes + test;