This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See the Artistic License file in the main Perl distribution for specific terms and conditions of use. In addition, the following disclaimers apply: CSHL makes no representations whatsoever as to the SOFTWARE contained herein. It is experimental in nature and is provided WITHOUT WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY OTHER WARRANTY, EXPRESS OR IMPLIED. CSHL MAKES NO REPRESENTATION OR WARRANTY THAT THE USE OF THIS SOFTWARE WILL NOT INFRINGE ANY PATENT OR OTHER PROPRIETARY RIGHT. By downloading this SOFTWARE, your Institution hereby indemnifies CSHL against any loss, claim, damage or liability, of whatsoever kind or nature, which may arise from your Institution's respective use, handling or storage of the SOFTWARE. If publications result from research using this SOFTWARE, we ask that CSHL be acknowledged and/or credit be given to CSHL scientists, as scientifically appropriate.