[Security-sig] New report of Python vulnerabilities

[Victor Stinner]

Hi,

I made major enhancements in my tool to generate reports on Python
vulnerabilities.

* A timeline is now automatically generated using the different dates:
initial report date, disclosure date, commits, Python releases, etc.

* CVE details are now downloaded automatically, so it's not more
filled manually in the YAML file.

* Each vulnerability has now its own page

Good example showing everything altogether, the Sweet32 attack:

http://python-security.readthedocs.io/vuln/cve-2016-2183_sweet32_attack_des_3des.html

The next step is to make sure that all maintained branches got a fix!
I should enhance the tool to compute the list of vulnerable Python
versions.

Victor