rendererconsole.py does not handle errors when calling dbus methods

[jku]

Traceback (most recent call last):
File "test/dbus/rendererconsole.py", line 271, in
renderer.print_icon("", "")
File "test/dbus/rendererconsole.py", line 139, in print_icon
bytes, mime = self.deviceIF.GetIcon(mime_type, resolution)
File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 70, in __call
return self._proxy_method(_args, *_keywords)
File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 145, in call
**keywords)
File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in call_blocking
message, timeout)
dbus.exceptions.DBusException: com.intel.dleyna.OperationFailed: Failed to GET device icon