ni_dbus_variant_init: fixed botched memset; thanks GCC

Signed-off-by: Olaf Kirch <okir@suse.de>
ni_dbus_objectmodel_bind_properties: replaced a ni_trace call with ni_debug_dbus()

Signed-off-by: Olaf Kirch <okir@suse.de>
testbus-master: backgrounding code was disabled; enable it now

Signed-off-by: Olaf Kirch <okir@suse.de>
Got rid of two more ni_trace calls in libdborb

Signed-off-by: Olaf Kirch <okir@suse.de>
Another fix for server backgrounding

Signed-off-by: Olaf Kirch <okir@suse.de>
New function ni_server_is_running - check for pidfile and process

Signed-off-by: Olaf Kirch <okir@suse.de>
testbus master, agent: do an early check for a valid pidfile to avoid weird failure messages on startup

Signed-off-by: Olaf Kirch <okir@suse.de>
Fixes to testbus-master init script; install it as well

Signed-off-by: Olaf Kirch <okir@suse.de>