* Fix vyos on network_cli on python3
bytes do not have format() in Python3
* Push connection to tasks, with bonus connection=local test
* Run tests without explicit connection set
* Add/update START messages where appropriate
* Run `save` before exiting config mode.
* Fix unit tests for `save`
* Allow `save` to be on its own again and introspect success
* Introspecting `compare running` makes this a lot harder.
Move `save` tests to integration tests
* Fix vyos signatures to match new versions
* Fix test cases referring to 'updates' instead of 'commands'
* I think this is an artifact of `connection: network_cli`?
When using AWS we have to use the full domain name in the inventory file, which
we rather than the short name. This change avoids that ending up being
set in the tests.
