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/SimpleLinkManager.java b/net/core/trivial/src/main/java/org/onlab/onos/net/trivial/impl/SimpleLinkManager.java
index 6e7c567..c7b56c0 100644
--- a/net/core/trivial/src/main/java/org/onlab/onos/net/trivial/impl/SimpleLinkManager.java
+++ b/net/core/trivial/src/main/java/org/onlab/onos/net/trivial/impl/SimpleLinkManager.java
@@ -148,7 +148,7 @@
     private class InternalLinkProviderService extends AbstractProviderService<LinkProvider>
             implements LinkProviderService {
 
-        public InternalLinkProviderService(LinkProvider provider) {
+        InternalLinkProviderService(LinkProvider provider) {
             super(provider);
         }