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+Copyright (c) 2004 David Holroyd, and contributors.
+
+Permission to use, copy, modify and distribute this software and its
+documentation for any purpose and without fee is hereby granted in
+perpetuity, provided that the above copyright notice appear in all
+copies, and that both the copyright notice and this permission notice
+appear in supporting documentation. The contributors make no
+representations about the suitability of this software for any
+purpose. It is provided "as is" without express or implied warranty.
+
+THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
+SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
+CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.