Merge pull request #2437 from peastman/license

Added L-BFGS to licenses file

docs-source/licenses/Licenses.txt

@@ -2,7 +2,7 @@ OpenMM was developed by Simbios, the NIH National Center for Physics-Based
 Simulation of Biological Structures at Stanford, funded under the NIH Roadmap
 for Medical Research, grant U54 GM072970. See https://simtk.org.
 
-Portions copyright � 2008-2015 Stanford University and the Authors.
+Portions copyright � 2008-2019 Stanford University and the Authors.
 
 There are several licenses which cover different parts of OpenMM as described
 below.
@@ -128,6 +128,7 @@ under the Creative Commons Attribution 3.0 Unported license.  For details, see
 https://creativecommons.org/licenses/by/3.0.  This library was modified to move
 it inside the simtk.openmm.app.internal module.
 
+
 7. irrXML
 
 OpenMM uses the irrXML library which is copyright 2002-2005 Nikolaus Gebhardt.
@@ -148,3 +149,31 @@ freely, subject to the following restrictions:
 2. Altered source versions must be plainly marked as such, and must not be
    misrepresented as being the original software.
 3. This notice may not be removed or altered from any source distribution.
+
+
+8. L-BFGS
+
+OpenMM uses the L-BFGS library by Jorge Nocedal and Naoaki Okazaki.  It may be
+used under the following license:
+
+Copyright (c) 1990, Jorge Nocedal
+Copyright (c) 2007-2010 Naoaki Okazaki
+All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.