* Add element updates (non-UI)
This can be controlled with autoinstall
updates: security or all
Also an API for controlling this:
curl --silent --unix-socket .subiquity/socket a/updates ->
"security"
curl -d '"all"' --unix-socket .subiquity/socket a/updates
* Automated tests - log grep for default/none/all states
* Enforce possible values on Updates controller
Route all the various get/set thru 2 common functions.
Validate incoming data.