Fixes for test_server_software_config

- Fixes building of self.stack_identifier
- Only check updated_time if the attribute exists.
  This allows latest heat agent code to be tested with
  Juno heat (which doesn't expose updated_time)

Change-Id: I3baa03a7305b95960e0d160a0c666e2a60aa0fa6
1 file changed
tree: 64d949da585a4c51f79fbc3eb9ee4ea671d2135d
  1. common/
  2. functional/
  3. scenario/