ryu-manager: copyright notice

Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>

bin/ryu-manager

@@ -1,4 +1,19 @@
 #!/usr/bin/env python
 
+# Copyright (C) 2011, 2012 Nippon Telegraph and Telephone Corporation.
+#
+# 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 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.
+
 from ryu.cmd.manager import main
 main()