Support HTTPS/SSL for POST-requests

[kfriedberger]

It would be nice to support HTTPS/SSL for POST-requests automatically.
This feature can easily be added

• with an option ("--ssl") or
• auto-detection (e.g., when using port 443) or
• by allowing a prefix ("https://") for the hostname.

For my use-case , I simply changed the HTTPConnection into a HTTPSConnection, in the following line:

buildbot-contrib/master/contrib/post_build_request.py

Line 233 in 5d56204

conn = httplib.HTTPConnection(options.host)