Mark columns as read-only for client-side data editing purposes

[eirikbakke]

One user suggested the ability to mark certain table columns as read-only for data editing purposes on the client side. This would be a user interface side convenience rather than a security feature.

(This issue opened as a spin-off from #35 , to be tracked separately.)

[eirikbakke]

This feature (along with #37 ) was added in Ultorg version 1.2.3; see https://www.ultorg.com/releasenotes/ . Existing Ultorg users can find the latest version at the old download link.