Added a config option to disable mob movement and combat.

This will come in handy when gruntwork starts.
Also fixed a bug where the ACCLEVEL setting was read as a boolean.

config.ini

@@ -24,6 +24,9 @@ chunksize=40000
 # time, in milliseconds, to wait before kicking a non-responsive client
 # default is 1 minute
 timeout=60000
+# should mobs move around and fight back?
+# can be disabled for easier mob placement
+simulatemobs=true
 # little message players see when they enter the game
 motd=Welcome to OpenFusion!
 # NPC json data