Bump copyright to 2018

[ci skip]

LICENSE

-Copyright (c) 2014-2017 Bjoern Kimminich
+Copyright (c) 2014-2018 Bjoern Kimminich
 
 Permission is hereby granted, free of charge, to any person
 obtaining a copy of this software and associated documentation

README.md

@@ -357,6 +357,6 @@ translations and commits to `app/i18n`. Grouped by language as of Mon,
 
 This program is free software: you can redistribute it and/or modify it
 under the terms of the [MIT license](LICENSE). OWASP Juice Shop and any
-contributions are Copyright © by Bjoern Kimminich 2014-2017.
+contributions are Copyright © by Bjoern Kimminich 2014-2018.
 
 ![Juice Shop Logo](https://raw.githubusercontent.com/bkimminich/juice-shop/master/app/public/images/JuiceShop_Logo.png)