🐛 Fix double negative in NEW_BSD_LICENSE.jj2

Fixes #28

Author: jayvdb

templates/NEW_BSD_LICENSE.jj2

@@ -13,7 +13,7 @@ that the following conditions are met:
   and/or other materials provided with the distribution.
 
 * Neither the name of '{{name}}' nor the names of the contributors
-  may not be used to endorse or promote products derived from this software
+  may be used to endorse or promote products derived from this software
   without specific prior written permission.
 
 THIS SOFTWARE AND DOCUMENTATION IS PROVIDED BY THE COPYRIGHT HOLDERS AND
@@ -27,4 +27,4 @@ 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 AND DOCUMENTATION, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
-DAMAGE.
+DAMAGE.