Replace zeropc usage with built-in proxy
The zerorpc heartbeat feature cannot really be disabled, and it is causing trouble when debugging. Moreover there are some bugs in zerorpc, for example with the reconnection feature that can only partially reconnect the streaming channel.
So, decision is to rely on our own code since Tiago already didall the job of abstracting transport in the RPC module.
Edited by Matias Guijarro