update store config delimiter

git-svn-id: https://hyracks.googlecode.com/svn/branches/fullstack_staging@1987 123451ca-8445-de46-9d55-352943316053
diff --git a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/clusterconfig/ClusterConfig.java b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/clusterconfig/ClusterConfig.java
index a22b6f4..bb4a707 100644
--- a/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/clusterconfig/ClusterConfig.java
+++ b/pregelix/pregelix-core/src/main/java/edu/uci/ics/pregelix/core/jobgen/clusterconfig/ClusterConfig.java
@@ -100,7 +100,7 @@
             throw new HyracksDataException(e);
         }
         String store = properties.getProperty("store");
-        stores = store.split(";");
+        stores = store.split(",");
     }
 
     /**