Now default is not to follow the logs (which is similar to `kubectl logs`).
Integration test was added for `Logs()` API and `osctl logs` command.
Signed-off-by: Andrey Smirnov <smirnov.andrey@gmail.com>
This starts with a very simple test for `osctl version` using regexps as
output of the command depends a lot on current version.
We might use more of 'gold' matches for other commands potentially.
Signed-off-by: Andrey Smirnov <smirnov.andrey@gmail.com>
