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/trivial/src/main/java/org/onlab/onos/net/trivial/impl/SimpleDeviceStore.java b/core/trivial/src/main/java/org/onlab/onos/net/trivial/impl/SimpleDeviceStore.java
index 5441c6d..8e42ffb 100644
--- a/core/trivial/src/main/java/org/onlab/onos/net/trivial/impl/SimpleDeviceStore.java
+++ b/core/trivial/src/main/java/org/onlab/onos/net/trivial/impl/SimpleDeviceStore.java
@@ -35,7 +35,7 @@
 import static org.slf4j.LoggerFactory.getLogger;
 
 /**
- * Manages inventory of infrastructure DEVICES using trivial in-memory
+ * Manages inventory of infrastructure devices using trivial in-memory
  * structures implementation.
  */
 @Component(immediate = true)