Some problems with event.get

There are two problems with event.get:

1. It has a showUnknown parmeter, which was, probably, added to retrieve unknown events. But currently unknown events are returned by default and the parameter doesn't do anything.
2. When logged in with a super admin user, event.get with no parameters will return all of the events, but for admin users - only trigger events. Admin users can also have access to discovery events.