Added the option to !opt-in/opt-out [onlinebot only]

Fixed command & event threading
Events are now threaded by event_type (i.e. all buddy_logon events get ran in the same one)
Added default preferences
Fixed recipe loading for multiple installs (i.e. on different machines)

modules/standard/recipe/recipe_controller.py

@@ -50,7 +50,7 @@ class RecipeController:
                 recipe = self.find_recipe(recipe_id, recipes)
                 if recipe:
                     recipes.remove(recipe)
-                    if recipe.dt == dt:
+                    if recipe.dt >= dt:
                         continue
 
                 self.update_recipe(recipe_dir, recipe_id, file_type, dt)