Add TCP_NODELAY

Author: slandelle

client/src/main/java/org/asynchttpclient/netty/channel/ChannelManager.java

@@ -193,6 +193,7 @@ private Bootstrap newBootstrap(Class<? extends Channel> socketChannelClass, Even
         Bootstrap bootstrap = new Bootstrap().channel(socketChannelClass).group(eventLoopGroup)//
                 // default to PooledByteBufAllocator
                 .option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT)//
+                .option(ChannelOption.TCP_NODELAY, true)//
                 .option(ChannelOption.AUTO_CLOSE, false);
 
         if (config.getConnectTimeout() > 0) {