[#1732] Fix bug which lead ChannelTrafficShapingHandler stop to work after first Channel was disconnected
[#1733] Correctly pass the promise to the ctx.write(...) in AbstractTrafficShapingHandler
use Promise instead of CallbackNotifier
resource leak: FileInputStream was never closed
[#1481] Add a JdkZlibDecoder which has no dependencies
SPDY: ensure channel close happens after outbound message is written
[#1743] Fix IllegalStateException by remove usage of PendingWrite in ChunkedWriteHandler. This needs more thoughts before re-introduce it
remove unused initialCapacity
Merge branch 'master' into pull2

Conflicts:
	transport/src/main/java/io/netty/channel/ChannelOutboundBuffer.java