prepare 0.2 release

ChangeLog

-python-nbxmpp 0.1 (XX)
+python-nbxmpp 0.2 (26 July 2013)
+
+  * Add some namespace
+  * do TLS handshake without blocking
+  * store all SSL errors instead of only last one
+
+python-nbxmpp 0.1 (05 August 2012)
 
   * Initial release

setup.py

@@ -3,7 +3,7 @@
 from distutils.core import setup
 
 setup(name='nbxmpp',
-      version='0.1',
+      version='0.2',
       description='Non blocking Jabber/XMPP module',
       author='Yann Leboulanger',
       author_email='asterix@lagaule.org',