Update copyright dates (20XY-2012 ==> 20XY-2013)


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13658 a5019735-40e9-0310-863c-91ae7b9d1cf9
Un-break the build on OSX 10.7.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13659 a5019735-40e9-0310-863c-91ae7b9d1cf9
Update.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13660 a5019735-40e9-0310-863c-91ae7b9d1cf9