Improved Erlang process representation in Python

[kvakvs]

Better feature mirroring from Erlang in Python:

• Better defined API for Python handlers of Pyrlang events in Process class
• Exception handling/crash imitation with links/monitors triggering and process ending

[s2hc-johan]

@kvakvs poking around the Process and gen_server a bit. Thinking of restructuring a bit in gen.py So one is apparently something for the RPC thing and the other one is for gen_server I'm guessing.

What about if we make generic message names, so messages is whats get passed around all the time right, so we could create:

• GenIncomingCall
• GenIncomingCallRPC (or maybe just GenIncomingRPC if cast isn't an option)
• GenIncomingInfo
• GenIncomingCast

if not that we could use parse_incoming_msg that returns something like:

• (call, object)
• (cast, object)
• (info, object)
• ... if I missed somethig

Either way we can make a nice matching to know where to go after that in the gen_server. We also create a quite nice interface helping if someone needs to override.