Modify DBus service name to allow using QDBusServiceWatcher
Fix the DBus connection which allows passing a debuggee to one of the KDevelop debuggers for future versions (>=5.7) of KDevelop. Instead of the deprecated serviceOwnerChanged signal, a QDBusServiceWatcher is used, which requires a different naming scheme. See KDevelop commit 69ef7ea8. This change has no impact on the connection with current versions of KDevelop.