Update NOTICE

Author: mathieuancelin

NOTICE

@@ -1,6 +1,6 @@
 This software is licensed under the Apache 2 license, quoted below.
 
-Copyright 2017-2018 MAIF and contributors
+Copyright 2017-2019 MAIF and contributors
 
 Licensed under the Apache License, Version 2.0 (the "License"); you may not
 use this file except in compliance with the License. You may obtain a copy of
@@ -12,4 +12,4 @@ Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 License for the specific language governing permissions and limitations under
-the License.
+the License.