Send job tracker info to the right akonadiconsole instance.

akonadiconsole allows to choose which akonadi instance to monitor, but then
for trackers the DBus name was always "org.kde.akonadiconsole".
Fixed now, e.g. it registers as "org.kde.akonadiconsole-testrunner-20593".
The main instance is still "org.kde.akonadiconsole" so compat is kept.