Sketching more topology related stuff.
Added overview.html for Java API docs.
diff --git a/net/core/trivial/src/main/java/org/onlab/onos/net/trivial/impl/SimpleDeviceManager.java b/net/core/trivial/src/main/java/org/onlab/onos/net/trivial/impl/SimpleDeviceManager.java
index 29c119d..87a548e 100644
--- a/net/core/trivial/src/main/java/org/onlab/onos/net/trivial/impl/SimpleDeviceManager.java
+++ b/net/core/trivial/src/main/java/org/onlab/onos/net/trivial/impl/SimpleDeviceManager.java
@@ -150,7 +150,7 @@
     private class InternalDeviceProviderService extends AbstractProviderService<DeviceProvider>
             implements DeviceProviderService {
 
-        public InternalDeviceProviderService(DeviceProvider provider) {
+        InternalDeviceProviderService(DeviceProvider provider) {
             super(provider);
         }