pkgsrc changes:
o Simplify MASTER_SITES.
o Get rid of the EGG_NAME redefinition (seems no more needed).
Changes:
2015.09.06.2
o Ship weak cert bundle.
2015.09.06.1
o Provide old cert bundle.
o Use secure roots by defaults.
2015.09.06
o Update scripts to use mkcert.org.
net/mitmproxy).
Certifi is a carefully curated collection of Root Certificates for
validating the trustworthiness of SSL certificates while verifying the
identity of TLS hosts. It has been extracted from the Requests project.