updated for 2.31 release

git-svn-id: http://svn.code.sf.net/p/processhacker/code/misc@5363 21ef857c-d57f-4fe0-8362-d861dc6d29cd
updated footer date for 2013

git-svn-id: http://svn.code.sf.net/p/processhacker/code/misc@5364 21ef857c-d57f-4fe0-8362-d861dc6d29cd