feat: allow connection to self certified SSL HTTPS servers
feat: allow connection to self certified SSL HTTPS servers

Preface
=======

Many times organizations use internal jira servers which are secured by
configuring https access with a "self-signed" (or otherwise not publicly
verifiable) SSL certificate.

Currently, [an exception is raised](http://pastebin.com/DuhTNYDv) when
issuing a command to such a server.

This Pull-Request's main intent is to allow the user to set options
which customize SSL behavior; preferably by passing SSLContext where
possible (requests does not yet support it as of now, see
issue kennethreitz/requests#2118).

Change Details
==============

* passed directly to xmlrpclib.ServerProxy constructor
* requests only has partial support; `verify` bool option is passed
* SOAPpy: no change -> strangely works without raising SSLError

asfaltboy/jirash,asfaltboy/jirash