Update boostrap and list of all available responses

I updated the bootstrap.py script to the latest version. It gave me some problems with setuptools/distutils.
The source is http://downloads.buildout.org/2/bootstrap.py as documented in https://pypi.python.org/pypi/zc.buildout/2.2.1. 

The other thing I changed is the list of responses in the index.html. I added the full list of available responses to the index page.