This R package provides R interface to three multiple alignment software
packages not written by the authors of this R package. Furthermore, this
package also includes some more libraries and utilities that have not been
written by the package authors either. Copyright and license information
is enclosed below.

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ClustalW:

The copyright for ClustalW is held by Des Higgins, Julie Thompson, and
Toby Gibson.The project homepage can be found at
http://www.clustal.org/clustal2/. ClustalW is distributed under the Gnu Lesser
General Public License, Version 3.

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ClustalOmega:

The copyright for ClustalOmega is held by Fabian Sievers, Andreas Wilm,
David Dineen, Johannes Söding, and Michael Remmert. The project homepage can
be found at http://www.clustal.org/omega/. ClustalOmega is distributed
under the Gnu General Public License, Version 2.

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Muscle:

ClustalOmega was written by Robert Edgar. The project homepage can be found
at http://www.drive5.com/muscle/. Muscle has been released
to the public domain without any specific license.

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argtable2:

argtable was written by Stewart Heitmann. The project homepage can be found at
http://argtable.sourceforge.net/. argtable is distributed
under the Gnu General Public License, Version 2.

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squid:

squid was written by Sean Eddy. squid is distributed under the Gnu General 
Public License, Version 2.

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texshade:

texshade was written by Eric Beitz. The project homepage can be found at
http://www.ctan.org/tex-archive/macros/latex/contrib/texshade. texshade is
distributed under the Gnu General Public License, Version 2.

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libgc:

libgc was written by Hans-J. Boehm and Alan J. Demers. libgc has been released
to the public domain without any specific license. The program can be used for
any purpose provided that the following notices are retained:

  Copyright 1988, 1989 Hans-J. Boehm, Alan J. Demers
  Copyright (c) 1991-1995 by Xerox Corporation.  All rights reserved.
  Copyright (c) 1996-1999 by Silicon Graphics.  All rights reserved.
  Copyright (c) 1999-2001 by Hewlett-Packard. All rights reserved.

  THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
  OR IMPLIED.  ANY USE IS AT YOUR OWN RISK.