Fixing timeout and max_responses on ClientGroup.read_responses and changing definitions so that compilation flags are not inherited.
Version 0.06;
reverted max_response argument of ClientGroup.read_responses to max;
added _peer_version to Connection and server_version property to Client;
fixed onerror callback;
modified common definition initialization so that import and other errors are reported to the client;
client and server compatible with 0.05;