2013-08-23: adjusted the copyright year(s).

adjusted the copyright year(s).

diff --git a/staticsite.py b/staticsite.py
--- a/staticsite.py
+++ b/staticsite.py
@@ -11,7 +11,7 @@ serve and full solutions like bitbucket 
 without the interactivity).
 """
 
-__copyright__ = """Copyright 2012 Arne Babenhauserheide
+__copyright__ = """Copyright 2012 till 2013 Arne Babenhauserheide
 
 This software may be used and distributed according to the terms of the
 GNU General Public License version 2 or any later version.