adds denis to contributor list

Snider · Snider · commit 8d6d5154911c · 2015-08-08T10:51:20.000+01:00
diff --git a/composer.json b/composer.json
@@ -24,7 +24,7 @@
         {
             "name" : "Dennis Koot",
             "url" : "http://www.tantalos.nl/",
-            "role" : "developer"
+            "role" : "contributor"
         }
 
     ],
