Restructured to separate stores and managers into different bundles. Reactive forwarding does not seem to work; will investigate.
diff --git a/core/net/src/main/java/org/onlab/onos/net/topology/impl/package-info.java b/core/net/src/main/java/org/onlab/onos/net/topology/impl/package-info.java
new file mode 100644
index 0000000..17c3644
--- /dev/null
+++ b/core/net/src/main/java/org/onlab/onos/net/topology/impl/package-info.java
@@ -0,0 +1,4 @@
+/**
+ * Core subsystem for tracking global & consistent topology graph views.
+ */
+package org.onlab.onos.net.topology.impl;