Update control file

Update equivs control file to include github page as homepage and
to use github's standard license filename for the license.

signed-off-by: Martyn Welch <martyn@welchs.me.uk>
Correct session termination and T&Cs display logic

Session wasn't being terminated when the user disagreed with
the terms and conditions. The command to terminate a session
also had a typo.

The T&Cs screen also needs the fully qualified path for the
tnc.html file to be used.

signed-off-by: Martyn Welch <martyn@welchs.me.uk>
Add control file to launch automatically for guest account

Adding a desktop file in "/etc/skel/.config/autostart" will cause
freedesktop.org compliant sessions to launch the session control
automatically when a guest session is started.

signed-off-by: Martyn Welch <martyn@welchs.me.uk>