Update the release history and move to beta

docs/history.rst

@@ -3,6 +3,12 @@
 Version History
 ===============
+0.4.3 (2016-04-01)
+------------------
+ - Allow GET with empty body (#2) - Dmitry Mukhin
+ - Ensure headers is None if empty (#2) - Dmitry Mukhin
+ - Don't blow up if an exception other than tornado.httpclient.HTTPError is raised
+
 0.4.2 (2016-02-16)
 ------------------
  - Add support for ``ExpiredTokenException``
@@ -13,13 +19,13 @@ Version History
 0.4.0 (2016-02-05)
 ------------------
- - Add support for the AWS_DEFAULT_REGION environment variable.
+ - Add support for the AWS_DEFAULT_REGION environment variable
  - Cleanup retry requests
  - Ensure HTTPClient usage is new and not out of a shared pool
 0.3.0 (2016-02-03)
 ------------------
- - Make authentication work with EC2 Instance metadata, add async support for credential fetching.
+ - Make authentication work with EC2 Instance metadata, add async support for credential fetching
 0.2.0 (2016-02-02)
 ------------------

setup.py

 import setuptools
-CLASSIFIERS = ['Development Status :: 3 - Alpha',
+CLASSIFIERS = ['Development Status :: 4 - Beta',
                'Intended Audience :: Developers',
                'License :: OSI Approved :: BSD License',
                'Operating System :: OS Independent',