Add LICENSE file. Fix #16.

Author: Ronan Dunklau

LICENSE

@@ -0,0 +1,7 @@
+Copyright (c) 2013, Kozea
+
+Permission to use, copy, modify, and distribute this software and its documentation for any purpose, without fee, and without a written agreement is hereby granted, provided that the above copyright notice and this paragraph and the following two paragraphs appear in all copies.
+
+IN NO EVENT SHALL KOZEA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF KOZEA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+KOZEA SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND KOZEA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

README.md

@@ -7,4 +7,5 @@ The Multicorn Foreign Data Wrapper allows you to fetch foreign data in Python in
 
 Documentation available at : http://multicorn.org
 
-Kozea 2011
+Multicorn is distributed under the PostgreSQL license. See the LICENSE file for
+details.