Renamed *Instance to *Node for better readability and to avoid conflict with notion of Karaf instance.
Added cluster service and trivial store implementations.
diff --git a/core/net/src/main/java/org/onlab/onos/net/device/impl/DeviceManager.java b/core/net/src/main/java/org/onlab/onos/net/device/impl/DeviceManager.java
index 5964c08..8dcba64 100644
--- a/core/net/src/main/java/org/onlab/onos/net/device/impl/DeviceManager.java
+++ b/core/net/src/main/java/org/onlab/onos/net/device/impl/DeviceManager.java
@@ -33,7 +33,7 @@
 import static org.slf4j.LoggerFactory.getLogger;
 
 /**
- * Provides basic implementation of the device SB & NB APIs.
+ * Provides implementation of the device SB & NB APIs.
  */
 @Component(immediate = true)
 @Service