Update LICENSE to exclude training of AI using the source code

LICENSE

@@ -1,4 +1,4 @@
-  BSD 3-clause (aka BSD 2.0) License
+ BSD 3-clause (aka BSD 2.0) Non-AI License
 
 Copyright 2011-2015 Stanford University and the Authors
 Copyright 2015-2018 Regents of the University of California and the Authors
@@ -24,6 +24,13 @@ and/or other materials provided with the distribution.
 may be used to endorse or promote products derived from this software
 without specific prior written permission.
 
+4. The source code and the binary form, and any modifications made to them may 
+not be used for the purpose of training or improving machine learning algorithms, 
+including but not limited to artificial intelligence, natural language processing, 
+or data mining. This condition applies to any derivatives, modifications, or updates 
+based on the Software code. Any usage of the source code or the binary form in an 
+AI-training dataset is considered a breach of this License.
+
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
@@ -34,3 +41,4 @@ 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, EVEN IF ADVISED OF THE
 POSSIBILITY OF SUCH DAMAGE.
+