add in is_connected property to base objects

evennia/objects/objects.py

@@ -206,6 +206,14 @@ class DefaultObject(with_metaclass(TypeclassBase, ObjectDB)):
     def sessions(self):
         return ObjectSessionHandler(self)
 
+    @property
+    def is_connected(self):
+        # we get an error for objects subscribed to channels without this
+        if self.account: # seems sane to pass on the account
+            return self.account.is_connected
+        else:
+            return False
+
     @property
     def has_account(self):
         """