minor documentation cleanup
netty-1597: Rewrite ByteBufInputStream.readLine() to avoid IndexOutOfBoundsException and to behave more correctly for lines ending in '\r'.
Fix checkstyle
netty-1616: Adding a 'last' check to SpdyHttpEncoder.
[#1619] Fix bug in ChannelOutboundBuffer which could lead to invalid write order when fireChannelWritabilityChanged() write another message
Merge remote-tracking branch upstream/$:{upbranch}