Update copyright for 2021
diff --git a/pom.xml b/pom.xml
index e2fab38..d9221d3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
  #=============================================================================#
- # Copyright (c) 2018, 2020 Stephan Wahlbrink and others.
+ # Copyright (c) 2018, 2021 Stephan Wahlbrink and others.
  # 
  # This program and the accompanying materials are made available under the
  # terms of the Eclipse Public License 2.0 which is available at