Describe Semantics and Rang of Values of the "outdated" Attribute

[alxlo]

see #20

Having an outdated attribute is great, but what should possible values be?

[mikesperber]

Only outdated - it's boolean.

[alxlo]

so we change one language version and set all the others for this particular text to outdated="true"?

[mikesperber]

To outdated="outdated", but yes.

[mikesperber]

OK, to close this, @alxlo ?