Made Attribute value queries also work with database objects by overloading the Attribute manager methods in question. Added procpool support for the new serializer functions and cleaned up some things.

game/evennia.py

@@ -159,6 +159,7 @@ except ObjectDB.DoesNotExist:
 except DatabaseError,e:
     print """
     Your database does not seem to be set up correctly.
+    (error was '%s')
 
     Please run:
 
@@ -171,8 +172,7 @@ except DatabaseError,e:
          python manage.py migrate
 
     When you have a database set up, rerun evennia.py.
-    """
-    print e
+    """ % e
     sys.exit()
 
 # Add this to the environmental variable for the 'twistd' command.