org-pcomplete: Update copyright year

lisp/org-pcomplete.el

@@ -1,6 +1,6 @@
 ;;; org-pcomplete.el --- In-buffer completion code
 
-;; Copyright (C) 2004-2014 Free Software Foundation, Inc.
+;; Copyright (C) 2004-2015 Free Software Foundation, Inc.
 ;;
 ;; Author: Carsten Dominik <carsten at orgmode dot org>
 ;;         John Wiegley <johnw at gnu dot org>