Changed LICENSE from 3-clause to 2-clause BSD.

Author: stephenmcd

LICENSE

@@ -11,10 +11,6 @@ are permitted provided that the following conditions are met:
        notice, this list of conditions and the following disclaimer in the
        documentation and/or other materials provided with the distribution.
 
-    3. Neither the name of django-forms-builder nor the names of its
-       contributors may be used to endorse or promote products derived from
-       this software without specific prior written permission.
-
 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