Merge branch 'feature/update-authors' into 'master'

Update list of authors

See merge request !180 (merged)

(cherry picked from commit c1814445)

5e532337 Update list of authors

COPYING

@@ -57,7 +57,22 @@ Thimo Neubauer          (thimo)
                         (ug)
 Christian Wieners       (wieners)
 
+Ansgar Burchardt
+Bernd Flemisch
+Carsten Gräser
+Felix Gruber
+René Heß
+Roland Kaufmann
+Liam Keegan
+Timo Koch
 Steffen Müthing
+Martin Nolte
+Santiago Ospina
+Elias Pipping
+Simon Praetorius
+Lukas Riedel
+Eugen Salzmann
+Henrik Stolzmann