get rid of the MessageDistributor module... & update discord, to work with API v10

Added discord commands (issue: as they're running over the event hub, they're processed on the same track as other events. => activity ingame triggers the next run; otherwise there's some delay for responses)
relay is a standard module now.

bootstrap.py

@@ -13,6 +13,8 @@ from core.logger import Logger
 from core.registry import Registry
 from core.upgrade import run_upgrades
 
+import faulthandler
+faulthandler.enable()
 
 def get_config_from_env():
     config_obj = DictObject()