* The launcher now uses instantiated systemd template units when
activating a service that has no associated systemd service file.
This allows services to stick around after being deactivated. It is
closer in behavior to the original service activation of dbus-daemon,
while still keeping them out of the dbus-broker environment.
* Audit is now only enabled when --audit is passed to dbus-broker. By
default, the launcher will pass it only for the system bus.
* The launcher now supports configuration reloading. When triggered, it
forces the launcher to reload the bus configuration and all service
files, and adjust the broker state. Note that not all modifiers can
be adjusted at runtime (e.g., you cannot change the user the broker
runs as). The set of modifiers that can be adjusted at runtime is the
same set that dbus-daemon(1) supports.
The reload operation can be triggered via a direct SIGHUP to the
launcher, or via the ReloadConfig() call on org.freedesktop.DBus.