Bugfixes for DistributedLockManager functionality
Added a method called broadcastIncludeSelf to ClusterCommunicationService.
Cosmetic improvements: added toString methods

Change-Id: I1d58720c29e6f8642f950670c3a6d95a7019a491
diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/service/impl/DistributedLock.java b/core/store/dist/src/main/java/org/onlab/onos/store/service/impl/DistributedLock.java
index c466941..cef53a5 100644
--- a/core/store/dist/src/main/java/org/onlab/onos/store/service/impl/DistributedLock.java
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/service/impl/DistributedLock.java
@@ -80,6 +80,7 @@
                 return false;
             }
         }
+        isLocked.set(true);
         lockExpirationTime = DateTime.now().plusMillis(leaseDurationMillis);
         return true;
     }
@@ -95,9 +96,11 @@
             if (DateTime.now().isAfter(lockExpirationTime)) {
                 isLocked.set(false);
                 return false;
+            } else {
+                return true;
             }
         }
-        return true;
+        return false;
     }
 
     @Override
@@ -105,6 +108,7 @@
         if (!isLocked()) {
             return;
         } else {
+            isLocked.set(false);
             databaseService.removeIfValueMatches(DistributedLockManager.ONOS_LOCK_TABLE_NAME, path, lockId);
         }
     }