service deactivation now is a trackable operation, so it requires changes in the models and signal handling. Also, TenantService deactivation is the same for us, so it was promoted to the parent class

Signed-off-by: Raphael Lullis <raphael@lullis.net>
Merge branch 'master' of ssh://github.com/litedesk/litedesk-webserver-provision