Feature/lims 1500

Running bika.lims.testing.BikaTestingLayer:Robot tests:
  Set up plone.testing.zca.LayerCleanup in 0.000 seconds.
  Set up plone.testing.z2.Startup in 0.225 seconds.
  Set up plone.app.testing.layers.PloneFixture in 7.295 seconds.
  Set up bika.lims.testing.BikaTestLayer in 1 minutes 3.789 seconds.
  Set up plone.testing.z2.ZServer in 0.502 seconds.
  Set up bika.lims.testing.BikaTestingLayer:Robot in 0.000 seconds.
  Running:
    1/2 (50.0%)The following test left new threads behind:
Import a slk Beads file (test_InstrumentInterficeAlerePima.robot)
New thread(s): [<_DummyThread(Dummy-1, started daemon 139728428877568)>]
                
  Ran 2 tests with 0 failures and 0 errors in 1 minutes 26.807 seconds.
Tearing down left over layers:
  Tear down bika.lims.testing.BikaTestingLayer:Robot in 0.000 seconds.
  Tear down plone.testing.z2.ZServer in 3.681 seconds.
  Tear down bika.lims.testing.BikaTestLayer in 0.017 seconds.
  Tear down plone.app.testing.layers.PloneFixture in 0.064 seconds.
  Tear down plone.testing.z2.Startup in 0.005 seconds.
  Tear down plone.testing.zca.LayerCleanup in 0.009 seconds.

thanks