minor cleanups in common.h; updated author info and copyright year
diff --git a/example/example16.cpp b/example/example16.cpp
index 350435f..7b676a9 100644
--- a/example/example16.cpp
+++ b/example/example16.cpp
@@ -1,7 +1,7 @@
 /*
     example/example16.cpp -- automatic upcasting for polymorphic types
 
-    Copyright (c) 2015 Wenzel Jakob <wenzel@inf.ethz.ch>
+    Copyright (c) 2016 Wenzel Jakob <wenzel.jakob@epfl.ch>
 
     All rights reserved. Use of this source code is governed by a
     BSD-style license that can be found in the LICENSE file.