RouteMessage delivering with latency time

[jordi]

NOTE: This approach adds a number of hops of delay to deliver every RouteMessage?. This ticket suggests two solutions to it.

'Suggestion of Pitt Zhang:

I want to think about latency of the network. they are two ways to achieve this:

First let class message has a fly_time attribute to denote the latency，At each simulate step, the messages in the Queue incoming set every fly_time-1 ,and the dispatcher handle the messages whose fly_time == 0

The second way is just keep a global Queue in network, every message be sent first cache in the queue, and at every simulate step, Queue set every fly_time-1, and move the messages whose fly_time == 0 to the certain Incoming Queue .

[pitt-zhang]

The attached file is for Ticket #28 The Ticket #29, I think it need more discussion. Max started the multi-thread branch, I think maybe we should take more care of the design of the data structure. synchronization maybe a little difficult in multi-thread.