Add client @id to ConfigScheduler jobs for the case where there are multiple instances of a given class (sometimes in tests). (#235)

(cherry picked from commit 92bd1741c4)

src/main/java/org/alfresco/util/ConfigScheduler.java

@@ -85,7 +85,7 @@ public abstract class ConfigScheduler<Data>
 
     public ConfigScheduler(Object client)
     {
-        jobName = client.getClass().getName()+"Job";
+        jobName = client.getClass().getName()+"Job@"+Integer.toHexString(System.identityHashCode(client));
     }
 
     public abstract boolean readConfig() throws IOException;