arista-gtk fails on ubuntu 13.04

Traceback (most recent call last):
File "/usr/local/bin/arista-gtk", line 447, in drag_data_received
self.on_add(None, preset)
File "/usr/local/bin/arista-gtk", line 514, in on_add
self.add_dialog = AddDialog(self, selected_preset)
File "/usr/local/bin/arista-gtk", line 1063, in **init**
self.setup_source()
File "/usr/local/bin/arista-gtk", line 1129, in setup_source
self.finder = arista.inputs.InputFinder()
File "/usr/local/lib/python2.7/dist-packages/arista/inputs/haldisco.py", line 184, in **init**
"/org/freedesktop/Hal/Manager")
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 241, in get_object
follow_name_owner_changes=follow_name_owner_changes)
File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 248, in **init**
self._named_service = conn.activate_name_owner(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 180, in activate_name_owner
self.start_service_by_name(bus_name)
File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 278, in start_service_by_name
'su', (bus_name, flags)))
File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in call_blocking
message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Hal was not provided by any .service files

NOTE: intalled as ''sudo ./setup.py install --install-layout=deb'' as described in README.md

Start in arista/inputs/haldisco.py at InputFinder initialization and trace the call from arista-gtk's AddDialog.setup_source. Reproduce the Ubuntu 13.04 failure from the reported DBus traceback; done means arista-gtk can process the dragged input without failing when the HAL service is unavailable.

Written by the indexing model from the issue text.