Add env variable to handle SPEC_REGION not only 'info/saas/ but actual region

[Pavel Lobashov]

In current code if I start test on com eu region
There will be code like this in start command:

export SPEC_REGION='com'

Just com part, not us/eu/sg or some kind of other

I think SPEC_REGION has incorrect name so need to change it and somehow handle Production/Staging status and actual region