LiveTest: use independant requests for each test method
LiveTest: set a default value for initial_transaction_hash so that _close does not fail when setUp has failed
LiveTest: use self.portal instead of getPortalObject
fix  Init Class Products.ERP5.Document.PresencePeriod.PresencePeriod has a security declaration for nonexistent method 'getExceptionValueList'
Make Constant.PropertyGetter a new style class
debug log