This is for clients of the exceptions API.
For instance, we can tell dashi that any CustomModuleException must be translated as NotFoundError, which will be shipped to the client. On the client it can be handled without parsing a DashiError object to find out what was the real exception on the server.
This exception can be serialized and raised on the client side. Also move dashi exceptions to their own file.
Seems like we need a new strategy for RPC replies.
Kombu 2.1.2 fixes a bug with AMQP and SSL.
Speeds up tests dramatically.
We do exact matching between routing key and queue, so a topic exchange is not required.