restored deleted rst files

Author: TingwenZhang

LICENSE-DANSE.rst

@@ -0,0 +1,50 @@
+LICENSE
+=======
+
+This program is part of the DiffPy and DANSE open-source projects
+and is available subject to the conditions and terms laid out below.
+
+Copyright 2006-2007, Board of Trustees of Michigan State University,
+
+Copyright 2008-2012, The Trustees of Columbia University in the
+City of New York.  (Copyright holder indicated in each source file).
+
+Copyright (c) 2024, The Trustees of Columbia University in the City of New York.
+All rights reserved.
+
+For more information please visit the project web-page:
+
+    http://www.diffpy.org/
+
+or email Prof. Simon Billinge at sb2896@columbia.edu
+
+Redistribution and use in source and binary forms, 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.
+
+- Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+
+- Neither the name of the copyright holder nor the names of its
+    contributors may be used to endorse or promote products derived from
+    this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY COPYRIGHT HOLDER "AS IS".  COPYRIGHT HOLDER
+EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES AND CONDITIONS, EITHER
+EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY, TITLE, FITNESS, ADEQUACY OR SUITABILITY
+FOR A PARTICULAR PURPOSE, AND ANY WARRANTIES OF FREEDOM FROM
+INFRINGEMENT OF ANY DOMESTIC OR FOREIGN PATENT, COPYRIGHTS, TRADE
+SECRETS OR OTHER PROPRIETARY RIGHTS OF ANY PARTY.  IN NO EVENT SHALL
+COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+THIS SOFTWARE OR RELATING TO THIS AGREEMENT, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.

LICENSE-pymmlib.rst

@@ -0,0 +1,203 @@
+.. code-block:: text
+
+                        The Artistic License 2.0
+
+                Copyright (c) 2000-2006, The Perl Foundation.
+
+        Everyone is permitted to copy and distribute verbatim copies
+        of this license document, but changing it is not allowed.
+
+    Preamble
+
+    This license establishes the terms under which a given free software
+    Package may be copied, modified, distributed, and/or redistributed.
+    The intent is that the Copyright Holder maintains some artistic
+    control over the development of that Package while still keeping the
+    Package available as open source and free software.
+
+    You are always permitted to make arrangements wholly outside of this
+    license directly with the Copyright Holder of a given Package.  If the
+    terms of this license do not permit the full use that you propose to
+    make of the Package, you should contact the Copyright Holder and seek
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+
+    Definitions
+
+        "Copyright Holder" means the individual(s) or organization(s)
+        named in the copyright notice for the entire Package.
+
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+        material to the Package, in accordance with the Copyright Holder's
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+    Permissions for Redistribution of the Standard Version
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+    Distribution of Modified Versions of the Package as Source
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+
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+    Modified Versions is governed by this Artistic License. By using,
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+
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