XMPP server certificate is now checked, and connection is refused (by default) if it's not valid.
Certificate check can be disabled in the new parameter "Configuration/check_certificate".
If certificate checking is disabled, a warning note is sent on every new connection.
Twisted and Wokkel are temporarly monkey patched in sat.core.tls_patches module, until modifications are merged upstream.
- moved directories from src and frontends/src to sat and sat_frontends, which is the recommanded naming convention
- move twisted directory to root
- removed all hacks from setup.py, and added missing dependencies, it is now clean
- use https URL for website in setup.py
- removed "Environment :: X11 Applications :: GTK", as wix is deprecated and removed
- renamed sat.sh to sat and fixed its installation
- added python_requires to specify Python version needed
- replaced glib2reactor which use deprecated code by gtk3reactor
sat can now be installed directly from virtualenv without using --system-site-packages anymore \o/
