publish number of leasets and routers for floodfill

NetDb.cpp

@@ -173,7 +173,8 @@ namespace data
 					}	
 					lastSave = ts;
 				}	
-				if (ts - lastPublish >= 2400) // publish every 40 minutes
+				if (i2p::context.GetLastUpdateTime () > lastPublish ||  // our router has been updated 
+					ts - lastPublish >= 2400) // or publish every 40 minutes
 				{
 					Publish ();
 					lastPublish = ts;