It is nice to see error messages w/o swallowing exceptions while running
manually.

This reverts commit 77f2b98f.

setupPortalCertificateAuthority shall be done during site preparation in afterSetUp method.
And there are proper conditions related to live testing.

Conflicts:
	master/bt5/slapos_cloud/bt/revision, solved by += 1

Merge SlapOSCloudSecurity into SlapOSSecurity and put them in slapos_cloud,
in order to have correct dependency resolution.

Only rely on workflow state.

  We should keep using setupPortalCertificate until ERP5TypeTestCase be improved
  in order to use slapos promise at the unit tests for portal_certificate. To be
  fixed by Rafael.

It is called in global bootstrapSite.

Check that bang is called on parameter change for state, software release,
instnace xml and sla xml.

Cover basic shared cases.

Additionally abort transaction on end of test and generate random XMLs.