add/update license headers
diff --git a/asterix-installer/src/main/resources/hadoop-0.20.2/conf/hadoop-env.sh b/asterix-installer/src/main/resources/hadoop-0.20.2/conf/hadoop-env.sh
index e9396a4..96ef973 100644
--- a/asterix-installer/src/main/resources/hadoop-0.20.2/conf/hadoop-env.sh
+++ b/asterix-installer/src/main/resources/hadoop-0.20.2/conf/hadoop-env.sh
@@ -1,3 +1,17 @@
+#/*
+# Copyright 2009-2013 by The Regents of the University of California
+# 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 the License from
+#
+# 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.
+#*/
# Set Hadoop-specific environment variables here.
# The only required environment variable is JAVA_HOME. All others are