Improved Javadocs and code cleanup.
442950 - Embedded Jetty client requests to localhost hangs with high cpu usage (NIO OP_CONNECT Solaris/Sparc).

Now checking the return value of SocketChannel.connect() to determine
whether to register the channel (true) or finish the connect (false).
Merged branch 'master' into 'jetty-http2'.
442950 - Embedded Jetty client requests to localhost hangs with high cpu usage (NIO OP_CONNECT Solaris/Sparc).