update list of copyright holders

(cherry picked from commit ed7b441e)

LICENSE.md

@@ -29,9 +29,9 @@ Copyright holders
 | 2015-2017  | Johannes Hommel            |
 | 2012-2015  | Vishal Jambhekar           |
 | 2013-2014  | Muhammad Adil Javed        |
-| 2017       | Kata Kurgyis               |
 | 2012-2017  | Alexander Kissinger        |
 | 2013-2017  | Timo Koch                  |
+| 2017       | Kata Kurgyis               |
 | 2008-2012  | Andreas Lauser             |
 | 2008-2014  | Klaus Mosthaf              |
 | 2009-2014  | Philipp Nuske              |
@@ -39,7 +39,7 @@ Copyright holders
 | 2013-2014  | Dominik Riesterer          |
 | 2008       | Irina Rybak                |
 | 2013-2017  | Martin Schneider           |
-| 2015       | Simon Scholz               |
+| 2015-2017  | Simon Scholz               |
 | 2009       | Anneli Schöniger           |
 | 2015-2016  | Natalie Schröder           |
 | 2010-2016  | Nicolas Schwenck           |