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.

Check that destroyed state creates no new object (test_request_destroyed_state).
Check that simple case of requesting two different instances works correctly
(test_request_two_different).
Check that changes to tree structure are applied correctly for indexed tree
(test_request_tree_change_indexed) and that they are forbidden in other cases
(test_request_tree_change_not_indexed and test_request_tree_change_same_transaction,
where the former is a low severity bug, so expectedFailure).
Check that state is correctly propagated (test_request_started_stopped_destroyed).

Prove that trying to request with same title will fail (test_request_sameTitle).

Prove that shared parameter is correctly supported and system complains in case
if its type is incorrect (test_request_shared_True and test_request_shared_unsupported).

Prove that indexation will not result in damaged system (test_request_unindexed).

Prove that in case of normal request with same coordinates same instance is returned
(test_request_double).

Prove that in case if there is damage in system (same tree contains one then
more instance with same title) no more requests will be allowed (test_request_duplicated).

Jump directly into proper inital state of the tree.

Software Release document is created on demand.

variation_category_list is redefined in this property sheet.

Move its code into slapos_cloud and vifib_web bt5.