leap_cli should handle multiple local environments

I need to test the platform for both wheezy and jessie. Problem is that i cannot define two different local environments.

Even when i want to use a different non-local environment for another vagrant box, leap_cli puts it into the local env because of it's private ip addr.

(from redmine: created on 2015-11-26, closed on 2016-05-26, relates #8136 (closed))