Add first cut

Add first cut of the session-control script and ancillary files.

signed-off-by: Martyn Welch <martyn@welchs.me.uk>
Fix typo in session termination

Fix typo in command used to terminate sessions.

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

Add homepage now that we are on github and use githubs standard license
filename for the license file.

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