Add filter for empty constructor without parameters in enum (#649)

diff --git a/org.jacoco.doc/docroot/doc/changes.html b/org.jacoco.doc/docroot/doc/changes.html
index 352e2d7..eebd90f 100644
--- a/org.jacoco.doc/docroot/doc/changes.html
+++ b/org.jacoco.doc/docroot/doc/changes.html
@@ -20,6 +20,13 @@
 
 <h2>Snapshot Build @qualified.bundle.version@ (@build.date@)</h2>
 
+<h3>New Features</h3>
+<ul>
+  <li>Empty constructor without parameters in enum is filtered out during
+      generation of report
+      (GitHub <a href="https://github.com/jacoco/jacoco/issues/649">#649</a>).</li>
+</ul>
+
 <h2>Release 0.8.0 (2018/01/02)</h2>
 
 <h3>New Features</h3>