Update README.rst

Updated readme with script example for Gunicorn Paster.
fix gevent graceful timeout for real

`server.kill()` is too aggressive. It sends a GreenletExit exception
to all the pool workers, causing them to exit immediately.

A simple one line fix is to use `server.stop()`. In my testing, it
appears that `server.stop_accepting()` will make the server stop
listening, but pending connections already in the `accept()` backlog
are still handled. With `server.stop()` the accept backlog is not
handled, the listener is closed in the worker, but existing requests
are allowed to exit gracefully.
some setup enhancements preparing the python 3 release
add rss feed to the homepage. fix #146
obvious syntax fixes preparing python3 support
support >= 2.6 we don't need anymore this port
add six modules inside gunicorn
handle bytes & native strings

This patch makes sure that we now handle correctly bytes and native
strings on python 3:

- In python 3, sockets are now taking and returning bytes.
- according to PEP3333, headers should be native strings and body in
  bytes.
s/raise/reraise
fix exceptions
miscellaneous fixes
all tests pass under python 3
fixes for py27
we are now using py.test for testing
use args for the socket errno
use args as well.
fix from @sirkonst feedback
update tox & makefile for py.test
update travis.xml to est on py3
Revert "fix gevent graceful timeout for real"

This reverts commit fd6c712dd432f6cbbadd53bb59e7c5ce7b07e0cb.