Fix travis yaml file asf header, change to mini. (#22)
diff --git a/.travis.yml b/.travis.yml
index 133d625..160f53e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,18 +1,5 @@
-#
# Licensed to the Apache Software Foundation (ASF) under one or more contributor
-# license agreements. See the NOTICE file distributed with this work for additional
-# information regarding copyright ownership. The ASF licenses this file to you
-# 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 the License
-# at:
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# 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.
-#
+# license agreements; and to You under the Apache License, Version 2.0.
sudo: required
group: deprecated-2017Q3
