minor cleanups in common.h; updated author info and copyright year
diff --git a/example/example13.cpp b/example/example13.cpp
index 782db31..6c1b876 100644
--- a/example/example13.cpp
+++ b/example/example13.cpp
@@ -2,7 +2,7 @@
example/example13.cpp -- keep_alive modifier (pybind11's version
of Boost.Python's with_custodian_and_ward / with_custodian_and_ward_postcall)
- 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.