Allowed fluid flow parent claim to child claim.

src/me/ryanhamshire/GriefPrevention/BlockEventHandler.java

@@ -604,11 +604,15 @@ public class BlockEventHandler implements Listener
         {
             this.lastSpreadClaim = toClaim;
             if(!toClaim.contains(spreadEvent.getBlock().getLocation(), false, true))
+            {
+                //exception: from parent into subdivision
+                if(toClaim.parent == null || !toClaim.parent.contains(spreadEvent.getBlock().getLocation(), false, false))
                 {
                     spreadEvent.setCancelled(true);
                 }
             }
         }
+	}
 	
 	//ensures dispensers can't be used to dispense a block(like water or lava) or item across a claim boundary
 	@EventHandler(ignoreCancelled = true, priority = EventPriority.LOWEST)