In ricochet-qt, contacts were stored with a sequential numeric ID, and
that was used in various places to refer to the contact uniquely. The
habit carried over here in an attempt to keep configuration
compatibility.
These IDs are error prone (particularly over RPC) and unnecessary. This
removes the entire concept and uses addresses to index and refer
uniquely to contacts everywhere.
It's now possible to regenerate the protobuf files by calling 'go
generate' in rpc/. You will need protoc and protoc-gen-go in PATH.
This is only necessary after changing the protobuf definitions.
John Brooks