httplib2 added to HTTP section

Created by: satanowski

README.md

@@ -272,6 +272,7 @@ long, literate-programming-style documentation generator.
 * [requests](http://docs.python-requests.org/) - HTTP Requests for Humans™.
 * [urllib3](https://github.com/shazow/urllib3) - HTTP library with thread-safe connection pooling, file post support, sanity friendly, and more.
 * [treq](https://github.com/dreid/treq) - Python requests like API built on top of Twisted's HTTP client.
+* [httplib2](https://github.com/jcgregorio/httplib2) - Comprehensive HTTP client library
 
 ## Database