Cleanup a few of the CORD apps.

* Removed or turned per-packet logs down to trace in the PIM app
* Can now reconfigure remote sync host in CordMcast
* CordMcast catches REST exceptions rather than bombing

Change-Id: Iae027d5ce1d9047827ea80b071dc77ca49c65206
diff --git a/apps/pim/src/main/java/org/onosproject/pim/impl/PIMInterfaceService.java b/apps/pim/src/main/java/org/onosproject/pim/impl/PIMInterfaceService.java
index 53db001..b0ceba5 100644
--- a/apps/pim/src/main/java/org/onosproject/pim/impl/PIMInterfaceService.java
+++ b/apps/pim/src/main/java/org/onosproject/pim/impl/PIMInterfaceService.java
@@ -29,12 +29,12 @@
 public interface PIMInterfaceService {
 
     /**
-     * Return the PIMInterface associated with the given ConnectPoint.
+     * Returns the PIM interface associated with the given connect point.
      *
-     * @param cp The ConnectPoint we want to get the PIMInterface for.
-     * @return the PIMInterface if it exists, NULL if it does not exist.
+     * @param cp the connect point we want to get the PIM interface for
+     * @return the PIM interface if it exists, otherwise null
      */
-    public PIMInterface getPIMInterface(ConnectPoint cp);
+    PIMInterface getPIMInterface(ConnectPoint cp);
 
     /**
      * Retrieves the set of all interfaces running PIM.