CB7 and cbMailServices and Commandbox

@lmajano the problem is that without this setting available in dev, every time you make a change to a model that’s a singleton (i.e. all DAOs, service objects, etc.) the changes do not take without a fwreinit which is a bit of a PITA and quite heavy-handed.

Too bad there’s not a way for it only apply to non-framework models? Or perhaps to ignore caching singletons in modules_app and model folders in the first place if in dev mode? Just spitballing…