added mendeleev and magpie information to the LICENCE file

Author: drcassar

LICENSE

@@ -1,7 +1,14 @@
 GlassPy is licensed under the GNU General Public Licence version 3. SciGlass
-data is licensed under the ODC Open Database License (ODbL). The text of both
-licenses are below. In this repository, SciGlass data is stored in the folder
-/glasspy/data/datafiles.
+data is licensed under the ODC Open Database License (ODbL). Mendeleev data is
+licensed under the MIT license.  The text of all the  licenses are below. In
+this repository, SciGlass data is stored in the folder /glasspy/data/datafiles,
+mendeleev data is stored in /glasspy/chemistry/data.py and
+/glasspy/chemistry/data/chemical_properties.csv. Some data stored in the file
+/glasspy/chemistry/data/chemical_properties.csv comes from the reference:  Ward,
+L., Agrawal, A., Choudhary, A., and Wolverton, C. (2016). A general-purpose
+machine learning framework for predicting properties of inorganic materials. npj
+Computational Materials 2, 16028.  10.1038/npjcompumats.2016.28.
+
 
 
 ---------------
@@ -686,9 +693,9 @@ Public License instead of this License.  But first, please read
 
 
 
----------------------
-SciGlass data license
----------------------
+----------------
+SciGlass license
+----------------
 
 
 ODC Open Database License (ODbL)
@@ -712,3 +719,31 @@ 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.
+
+
+
+-----------------
+Mendeleev license
+-----------------
+
+The MIT License (MIT)
+
+Copyright (c) 2015 Lukasz Mentel
+
+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.