system test ha_neutron_virtual_router failed via settings.py/DOWNLOAD_LINK refert to http://ubuntu1.hti.pl/14.04.3/ubuntu-14.04.3-server-amd64.iso are not existing anymore

https://product-ci.infra.mirantis.net/job/9.0.system_test.ubuntu.ha_neutron_destructive/58/consoleFull

Traceback (most recent call last):
  File "/usr/lib/python2.7/unittest/case.py", line 331, in run
    testMethod()
  File "/usr/lib/python2.7/unittest/case.py", line 1043, in runTest
    self._testFunc()
  File "/home/jenkins/venv-nailgun-tests-2.9/local/lib/python2.7/site-packages/proboscis/case.py", line 296, in testng_method_mistake_capture_func
    compatability.capture_type_error(s_func)
  File "/home/jenkins/venv-nailgun-tests-2.9/local/lib/python2.7/site-packages/proboscis/compatability/exceptions_2_6.py", line 27, in capture_type_error
    func()
  File "/home/jenkins/venv-nailgun-tests-2.9/local/lib/python2.7/site-packages/proboscis/case.py", line 350, in func
    func(test_case.state.get_state())
  File "/home/jenkins/workspace/9.0.system_test.ubuntu.ha_neutron_destructive/fuelweb_test/helpers/decorators.py", line 117, in wrapper
    result = func(*args, **kwargs)
  File "/home/jenkins/workspace/9.0.system_test.ubuntu.ha_neutron_destructive/fuelweb_test/tests/tests_strength/test_failover.py", line 226, in ha_neutron_virtual_router
    super(self.__class__, self).check_virtual_router()
  File "/home/jenkins/workspace/9.0.system_test.ubuntu.ha_neutron_destructive/fuelweb_test/tests/tests_strength/test_failover_base.py", line 604, in check_virtual_router
    "File download was not started")
TimeoutError: File download was not started

Reason:
check_virtual_router tried to download image from DOWNLOAD_LINK which contain "http://ubuntu1.hti.pl/14.04.3/ubuntu-14.04.3-server-amd64.iso"

Verified manually:

wget http://ubuntu1.hti.pl/14.04.3/ubuntu-14.04.3-server-amd64.iso

Resolving ubuntu1.hti.pl (ubuntu1.hti.pl)... 217.168.140.86
Connecting to ubuntu1.hti.pl (ubuntu1.hti.pl)|217.168.140.86|:80... connected.
HTTP request sent, awaiting response... 404 Not Found
2016-03-25 11:21:19 ERROR 404: Not Found.

14.04.3 not existing anymore, need to use http://ubuntu1.hti.pl/14.04.4/ release now