Bump the copyright years

Author: bbatsov

README.md

@@ -366,7 +366,7 @@ This creates `.inf-clojure.log` in the project directory so that you can `tail -
 
 ## License
 
-Copyright © 2014-2018 Bozhidar Batsov and [contributors][].
+Copyright © 2014-2020 Bozhidar Batsov and [contributors][].
 
 Distributed under the GNU General Public License; type <kbd>C-h C-c</kbd> to view it.
 

inf-clojure.el

@@ -1,6 +1,6 @@
 ;;; inf-clojure.el --- Run an external Clojure process in an Emacs buffer -*- lexical-binding: t; -*-
 
-;; Copyright © 2014-2019 Bozhidar Batsov
+;; Copyright © 2014-2020 Bozhidar Batsov
 
 ;; Authors: Bozhidar Batsov <bozhidar@batsov.com>
 ;;       Olin Shivers <shivers@cs.cmu.edu>