It will force the connection parameters to bubble up to reach the user.

We need a real-world simulation, not a wrold where the user is constantly clicking on 'update' for 2 hours.

Never. Really.

It is needed for new version of slapos.libnetworkcache.

Also allow to bypass default value.

Reverts part of be3b061c

Completely rewrite the wrappers generation so that one is able to understand it...
... without spending hours.