Shitlist: Reduce max time to 30m (was 60m)

router/java/src/net/i2p/router/Shitlist.java

@@ -45,9 +45,9 @@ public class Shitlist {
         Set transports;
     }
     
-    public final static long SHITLIST_DURATION_MS = 40*60*1000; // 40 minute shitlist
-    public final static long SHITLIST_DURATION_MAX = 60*60*1000;
-    public final static long SHITLIST_DURATION_PARTIAL = 20*60*1000;
+    public final static long SHITLIST_DURATION_MS = 20*60*1000;
+    public final static long SHITLIST_DURATION_MAX = 30*60*1000;
+    public final static long SHITLIST_DURATION_PARTIAL = 10*60*1000;
     public final static long SHITLIST_DURATION_FOREVER = 181l*24*60*60*1000; // will get rounded down to 180d on console
     public final static long SHITLIST_CLEANER_START_DELAY = SHITLIST_DURATION_PARTIAL;