Update years in copyright lines.

Author: CasperVector

doc/chap/abstract.tex

@@ -1,7 +1,7 @@
 % vim:ts=4:sw=4
 %
 % Copyright (c) 2008-2009 solvethis
-% Copyright (c) 2010-2012 Casper Ti. Vector
+% Copyright (c) 2010-2013 Casper Ti. Vector
 % Public domain.
 
 \begin{cabstract}

doc/chap/originauth.tex

@@ -1,7 +1,7 @@
 % vim:ts=4:sw=4
 %
 % Copyright (c) 2008-2009 solvethis
-% Copyright (c) 2010-2012 Casper Ti. Vector
+% Copyright (c) 2010-2013 Casper Ti. Vector
 % All rights reserved.
 %
 % Redistribution and use in source and binary forms, with or without