Lacking information on channels and payments

[charltonh]

Here are some minor informational feature requests that I think would be very helpful:

On the open channels list, it is hard to know which channel is which because only the node public key is available. If possible, also include the node alias or description.

Also, it would be very helpful to know which channel a payment routed through. The whole route or a way to find it would be even more helpful, but right now the only way to know is to keep track of channel balances and remember which one was deducted.