LICENSE file added exception for OpenSSL

LICENSE

@@ -29,10 +29,23 @@
  modules. Our interpretation refers only to OSSEC - we don't speak
  for any other GPL products. 
 
+  * As a special exception, the copyright holders give
+  * permission to link the code of portions of this program with the
+  * OpenSSL library under certain conditions as described in each
+  * individual source file, and distribute linked combinations
+  * including the two.
+  * You must obey the GNU General Public License in all respects
+  * for all of the code used other than OpenSSL.  If you modify
+  * file(s) with this exception, you may extend this exception to your
+  * version of the file(s), but you are not obligated to do so.  If you
+  * do not wish to do so, delete this exception statement from your
+  * version.  If you delete this exception statement from all source
+  * files in the program, then also delete it here.
+
  OSSEC HIDS is distributed in the hope that it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  FITNESS FOR A PARTICULAR PURPOSE.
- See the GNU General Public License Version 3 below for more details.
+ See the GNU General Public License Version 2 below for more details.
 
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