add apache license to newly added conftest.py

conftest.py

@@ -1,3 +1,19 @@
+#       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.
 import pytest
 
 # should get rid of this once this issue is fixed https://github.com/TurboGears/tg2/issues/136