Update LICENSE year for myself.

LICENSE

@@ -1,6 +1,6 @@
 ISC License
 
-Copyright 2016-2017 Aaron Marcher <me@drkhsh.at>
+Copyright 2016-2018 Aaron Marcher <me@drkhsh.at>
 
 Copyright 2016 Roy Freytag <rfreytag@hs-mittweida.de>
 Copyright 2016 Vincent Loupmon <vincentloupmon@gmail.com>