[#1579] Fix resource leakage in WebSocketUtil.base64(...)
SPDY: port SpdySessionHandler to netty 4
Fix sendNumbers logic
Use Unpooled to allocate buffer in Base64
Add missing closing paren
[maven-release-plugin] prepare release netty-4.0.1.Final
[maven-release-plugin] prepare for next development iteration
Do not close ServerChannel on IOException while accepting an incoming connection

.. so that we can recover from 'too many open files'

- Fixes #1578
Modify HttpContentDecoder to writeInbound and readInbound from its internal decoder
Disable the timeout of some tests in SocketEchoTest to find out why it is hanging in CI
[#1595] Fix IllegalStateException thrown by HttpObjectEncoder when an empty HttpContent was written
Fix data structure corruption and resource leak in ChannelOutboundBuffer
Make sure all write attempts made after a channel is closed are marked as failure
Fix test failure
Fix checkstyle
Fail unflushed writes with ClosedChannelException

... instead of cryptic exception message.
Less confusing leak warning message
Improve the HttpPostRequestDecoder and so make it configurable when it will discard read bytes to prevent OOM
[maven-release-plugin] prepare release netty-4.0.2.Final
[maven-release-plugin] prepare for next development iteration