Show connection attempt status messages in network buffer

[easymac]

While a network connection is brokered, no messages appear in the network buffer until the connection is successful. We should see a Connecting to [host or name] message when a connection is started instead of a blank screen.

Error messages should also be piped there. Currently, connections that time out leave the network buffer entirely blank while emitting the following message on the server

Client#connect():
Error: connect ETIMEDOUT

In the event that auto-reconnect or auto-retry connections come to exist, I would also like to see Connection [lost or failed], retrying . . . messages.

[xPaw]

One of the things required for this to work correctly, is to move this code all the way up in the function: https://github.com/thelounge/lounge/blob/master/src/client.js#L213-L216

Then we will be able to send messages to network tab with what's happening.

[astorije]

This issue seems to be fixed by #167.