Adding copyright notice.

COPYRIGHT_and_DISCLAIMER

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+NOTICE
+
+This work was produced at the University of California, Lawrence
+Livermore National Laboratory (UC LLNL) under contract
+no. W-7405-ENG-48 (Contract 48) between the U.S. Department of Energy
+(DOE) and The Regents of the University of California (University) for
+the operation of UC LLNL. The rights of the Federal Government are
+reserved under Contract 48 subject to the restrictions agreed upon by
+the DOE and University as allowed under DOE Acquisition Letter 97-1.
+
+
+
+DISCLAIMER
+
+This work was prepared as an account of work sponsored by an agency of
+the United States Government. Neither the United States Government nor
+the University of California nor any of their employees, makes any
+warranty, express or implied, or assumes any liability or
+responsibility for the accuracy, completeness, or usefulness of any
+information, apparatus, product, or process disclosed, or represents
+that its use would not infringe privately-owned rights.  Reference
+herein to any specific commercial products, process, or service by
+trade name, trademark, manufacturer or otherwise does not necessarily
+constitute or imply its endorsement, recommendation, or favoring by
+the United States Government or the University of California. The
+views and opinions of authors expressed herein do not necessarily
+state or reflect those of the United States Government or the
+University of California, and shall not be used for advertising or
+product endorsement purposes.
+
+
+
+NOTIFICATION OF COMMERCIAL USE
+
+Commercialization of this product is prohibited without notifying the
+Department of Energy (DOE) or Lawrence Livermore National Laboratory
+(LLNL).
+
+
+