MotorCursor to_list ignores _fix_outgoing

MotorCursor().to_list does not apply son_manipulators when exhausting Cursor's deque.

Also, MotorDatabase()._fix_outgoing and MotorDatabase()._fix_incoming methods are missing, so the fix is 2-part.

PS: As far as I understand, find_one and next_objext methods work as expected since they run on the delegate.