Fix NullPointerException while setting custom InetAddress

[jamesanto]

When we set remote InetAddress manually to the request object, the TimeoutsHolder object is not set to the NettyResponseFuture. This causes NullPointerException at NettyConnectListener.java:107 while trying to set the resolved remote address to the TimeoutsHolder.

Error stack trace below:

java.lang.NullPointerException
	at org.asynchttpclient.netty.channel.NettyConnectListener.onSuccess(NettyConnectListener.java:107)
	at org.asynchttpclient.netty.request.NettyChannelConnector$1.onSuccess(NettyChannelConnector.java:93)
	at org.asynchttpclient.netty.SimpleChannelFutureListener.operationComplete(SimpleChannelFutureListener.java:26)
	at org.asynchttpclient.netty.SimpleChannelFutureListener.operationComplete(SimpleChannelFutureListener.java:20)
	at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:507)
	at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:500)
	at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:479)
	at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:420)
	at io.netty.util.concurrent.DefaultPromise.trySuccess(DefaultPromise.java:104)
	at io.netty.channel.DefaultChannelPromise.trySuccess(DefaultChannelPromise.java:82)
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:306)
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:341)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:633)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:580)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:497)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:459)
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:886)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.lang.Thread.run(Thread.java:748)

[slandelle]

Thanks!