Updated version and changelog

Author: sergioteula

README.md

@@ -102,6 +102,11 @@ For more information on how to work with serializers, check the documentation fo
 
 Changelog
 -------------
+    Version 3.3.1
+        - Allow searching by browse_node or search_index alone.
+        - Added license files for Amazon SDK.
+        - Solved bugs and typos.
+
     Version 3.3.0
         - Added serializer class for Django REST framework.
         - Solved bugs and typos.

amazon/__init__.py

@@ -1,4 +1,4 @@
 """Amazon Product Advertising API wrapper for Python"""
 
-__version__ = '3.2.0'
+__version__ = '3.3.1'
 __author__ = 'Sergio Abad'

setup.py

@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name='python-amazon-paapi',
-    version='3.3.0',
+    version='3.3.1',
     author='Sergio Abad',
     author_email='sergio.abad@bytelix.com',
     description='Amazon Product Advertising API 5.0 wrapper for Python',