Add all files in head and call back branches.
/*-------------------------------------------------------------------------
*
* Portions Copyright (c) 2004-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 2013-2015, NTT DATA Corporation
*
* Changelog:
* 2013/01/09
/*-------------------------------------------------------------------------
*
* Portions Copyright (c) 2007-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 2013-2015, NTT DATA Corporation
*
* Changelog:
* 2013/01/09
/*-------------------------------------------------------------------------
*
* Portions Copyright (c) 2004-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 2013-2015, NTT DATA Corporation
*
* Changelog:
* 2013/01/09