Add Clojure-vim contributors to copyright notices and update email

Author: axvr

LICENSE

@@ -13,7 +13,8 @@ Clojure.vim is licenced under the same terms as Vim using the Vim Licence.
 
     Modified and relicensed under the Vim License for distribution with Vim:
 
-        Copyright © 2013–2017, Sung Pae <self@sungpae.com>
+        Copyright © 2020–2021, The clojure-vim contributors
+        Copyright © 2013–2018, Sung Pae <self@sungpae.com>
 
 ------------------------------------------------------------------------------
 

README.md

@@ -225,9 +225,10 @@ Clojure.vim is licensed under the [Vim
 License](http://vimdoc.sourceforge.net/htmldoc/uganda.html#license) for
 distribution with Vim.
 
-- Copyright © 2013–2017, Sung Pae. <self@sungpae.com>
-- Copyright © 2008–2012, Meikel Brandmeyer. <mb@kotka.de>
-- Copyright © 2007–2008, Toralf Wittner. <toralf.wittner@gmail.com>
+- Copyright © 2020–2021, The clojure-vim contributors.
+- Copyright © 2013–2018, Sung Pae.
+- Copyright © 2008–2012, Meikel Brandmeyer.
+- Copyright © 2007–2008, Toralf Wittner.
 
 See [LICENSE](https://github.com/clojure-vim/clojure.vim/blob/master/LICENSE)
 for more details.

autoload/clojurecomplete.vim

@@ -1,6 +1,6 @@
 " Vim completion script
 " Language:           Clojure
-" Maintainer:         Alex Vear <av@axvr.io>
+" Maintainer:         Alex Vear <alex@vear.uk>
 " Former Maintainers: Sung Pae <self@sungpae.com>
 " URL:                https://github.com/clojure-vim/clojure.vim
 " License:            Vim (see :h license)

ftplugin/clojure.vim

@@ -1,6 +1,6 @@
 " Vim filetype plugin file
 " Language:           Clojure
-" Maintainer:         Alex Vear <av@axvr.io>
+" Maintainer:         Alex Vear <alex@vear.uk>
 " Former Maintainers: Sung Pae <self@sungpae.com>
 "                     Meikel Brandmeyer <mb@kotka.de>
 " URL:                https://github.com/clojure-vim/clojure.vim

indent/clojure.vim

@@ -1,6 +1,6 @@
 " Vim indent file
 " Language:           Clojure
-" Maintainer:         Alex Vear <av@axvr.io>
+" Maintainer:         Alex Vear <alex@vear.uk>
 " Former Maintainers: Sung Pae <self@sungpae.com>
 "                     Meikel Brandmeyer <mb@kotka.de>
 " URL:                https://github.com/clojure-vim/clojure.vim

syntax/clojure.vim

@@ -1,6 +1,6 @@
 " Vim indent file
 " Language:           Clojure
-" Maintainer:         Alex Vear <av@axvr.io>
+" Maintainer:         Alex Vear <alex@vear.uk>
 " Former Maintainers: Sung Pae <self@sungpae.com>
 "                     Meikel Brandmeyer <mb@kotka.de>
 "                     Toralf Wittner <toralf.wittner@gmail.com>