Check for new plugins a little bit faster.

git-svn-id: http://svn.igniterealtime.org/svn/repos/wildfire/trunk@4042 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/wildfire/container/PluginManager.java

@@ -82,7 +82,7 @@ public class PluginManager {
             executor.scheduleWithFixedDelay(new PluginMonitor(), 0, 5, TimeUnit.SECONDS);
         }
         else {
-            executor.scheduleWithFixedDelay(new PluginMonitor(), 0, 30, TimeUnit.SECONDS);
+            executor.scheduleWithFixedDelay(new PluginMonitor(), 0, 20, TimeUnit.SECONDS);
         }
     }