changed interval to 1/7

@@ -25,7 +25,7 @@ const DAY = 24 * HOUR;
 const MIN_INTERVAL = SECOND;
 const MAX_INTERVAL = 365 * 20 * DAY;
 
-const MIN_LIMIT = 5;
+const MIN_LIMIT = 7;
 //const AVG_LIMIT = 200;
 //const MAX_LIMIT = 500;