Output annotations in package-summary docs.

Bug 10749552
Bug 6333357

Change-Id: Iffdd04c911bafc8f2c368fc0d24af926f155928a
diff --git a/src/com/google/doclava/NavTree.java b/src/com/google/doclava/NavTree.java
index aa02d7c..e36babe 100644
--- a/src/com/google/doclava/NavTree.java
+++ b/src/com/google/doclava/NavTree.java
@@ -133,6 +133,7 @@
   private static Node makePackageNode(PackageInfo pkg) {
     List<Node> children = new ArrayList<Node>();
 
+    addClassNodes(children, "Annotations", pkg.annotations());
     addClassNodes(children, "Interfaces", pkg.interfaces());
     addClassNodes(children, "Classes", pkg.ordinaryClasses());
     addClassNodes(children, "Enums", pkg.enums());