Modify AbstractConfigTestBase to use opendaylight-karaf-empty
The vanilla karaf distro that AbstractConfigTestBase installs only has the
base features. We need the standard features which includes eventadmin
which is needed for the upcomng blueprint work. So I changed
AbstractConfigTestBase to install opendaylight-karaf-empty which now
includes the standard features as well as the updated Aries proxy-impl
1.0.5 artifact.
Change-Id: I46100cc8edb9743e0885b156a1adc37e3a18ca9e
Signed-off-by: Tom Pantelis <tpanteli@brocade.com>