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;

http-client-branch: split large WebSocket test into three

http-client-branch: HTTP references in java.net package

http-client-branch: add a test for 8199683; make sure no data is left in the queue after server closes the connection

http-client-branch: (WebSocket) open tests; internal queue cap (close); logging;