[License] Gsas-II

[MARIE Alexandre <alexandre.marie@synchrotron-soleil.fr>]

Hello,

I would like to know if the license of Gsas-II is free to use.
Here is the license :
______________________________________________________________________________________
 General Structure Analysis System - II (GSAS-II)
                         OPEN SOURCE LICENSE

Copyright 2010, UChicago Argonne, LLC, Operator of Argonne National Laboratory 
All rights reserved.

GSAS-II may be used by anyone on a royalty-free basis. Use and
redistribution, with or without modification, are permitted provided
that the following conditions are met:

* Redistributions of source code must retain the above copyright
  notice, this list of conditions and the following disclaimer.
* Software changes, modifications, or derivative works should be noted
  with comments and the author and organization's name.
* Distribution of changed, modified or derivative works based on
  GSAS-II grants the GSAS-II copyright holder unrestricted permission
  to include any, or all, new and changed code in future GSAS-II
  releases.
* Redistributions that include binary forms must include all relevant
  source code and reproduce the above copyright notice, this list of
  conditions and the following disclaimers in the documentation and/or
  other materials provided with the distribution.
* Neither the names of UChicago Argonne, LLC or the Department of
  Energy nor the names of its contributors may be used to endorse or
  promote products derived from this software without specific prior
  written permission.
* The software and the end-user documentation included with the
  redistribution, if any, must include the following acknowledgment:
  "This product includes software produced by UChicago Argonne, LLC
  under Contract No. DE-AC02-06CH11357 with the Department of Energy."

*****************************************************************************
WARRANTY DISCLAIMER: THE SOFTWARE IS SUPPLIED "AS IS" WITHOUT WARRANTY
OF ANY KIND. THE COPYRIGHT HOLDERS, THEIR THIRD PARTY LICENSORS, THE
UNITED STATES, THE UNITED STATES DEPARTMENT OF ENERGY, AND THEIR
EMPLOYEES: (1) DISCLAIM ANY WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE, TITLE OR NON-INFRINGEMENT, (2) DO NOT ASSUME
ANY LEGAL LIABILITY OR RESPONSIBILITY FOR THE ACCURACY, COMPLETENESS,
OR USEFULNESS OF THE SOFTWARE, (3) DO NOT REPRESENT THAT USE OF THE
SOFTWARE WOULD NOT INFRINGE PRIVATELY OWNED RIGHTS, (4) DO NOT WARRANT
THAT THE SOFTWARE WILL FUNCTION UNINTERRUPTED, THAT IT IS ERROR-FREE
OR THAT ANY ERRORS WILL BE CORRECTED.

LIMITATION OF LIABILITY: IN NO EVENT WILL THE COPYRIGHT HOLDERS, THEIR
THIRD PARTY LICENSORS, THE UNITED STATES, THE UNITED STATES DEPARTMENT
OF ENERGY, OR THEIR EMPLOYEES: BE LIABLE FOR ANY INDIRECT, INCIDENTAL,
CONSEQUENTIAL, SPECIAL OR PUNITIVE DAMAGES OF ANY KIND OR NATURE,
INCLUDING BUT NOT LIMITED TO LOSS OF PROFITS OR LOSS OF DATA, FOR ANY
REASON WHATSOEVER, WHETHER SUCH LIABILITY IS ASSERTED ON THE BASIS OF
CONTRACT, TORT (INCLUDING NEGLIGENCE OR STRICT LIABILITY), OR
OTHERWISE, EVEN IF ANY OF SAID PARTIES HAS BEEN WARNED OF THE
POSSIBILITY OF SUCH LOSS OR DAMAGES.
******************************************************************************
______________________________________________________________________________________

Thanks in advance for your help.

Cheers,

Alexandre Marie