add DATA_VERSION 2 to froggen.settings

[tcbrouwer]

I tried to run frog-dum and frog-nld-vnn from docker.

docker run proycon/frog -c /usr/share/frog/dum/frog.cfg

This results in

/usr/share/frog/dum/froggen.settings has a PROBLEM!
No DATA_VERSION setting is found but this version of MbT expects at least 2
Cannot read settingsfile /usr/share/frog/dum/froggen.settings
ucto: textcat configured from: /usr/share/ucto/textcat.cfg
frog-:Initialization failed for: [tagger] 
frog-:fatal error: Frog init failed

For now I fix this by extending the docker image and copying custom setting files with the DATA VERSION prepended.

COPY froggen.settings /usr/share/frog/dum/froggen.settings
COPY froggen.settings /usr/share/frog/nld-vnn/froggen.settings

I do however not know whether the files are actually 'DATA_VERSION' 2. If they are, this PR seems to fix the problem. Otherwise I need another solution.

[kosloot]

Well, although this trick works, it would be a much better idea to regenerate the data files to be used with the newest Mbt. (main improvement being that it better handles Unicode issues.
I did find the data-file for dum, but cannot access it (@proycon could you change the right on the server @ru ?)
I didn't yet find the original data for nld-vnn. I'm not sure where it stems from. @proycon any idea?

@tcbrouwer For the time being, your hack is sufficient. A regenerated Mbt file most likely just gives minor different results (like in Confidence values)

[proycon]

@tcbrouwer Thanks for the pull request. I didn't realize that this was now broken out-of-the-box, we definitely need to release a fixed frogdata then. Your fix looks like a quick and acceptable one, unless we indeed want to regenerate it properly like @kosloot suggests.

(@proycon could you change the right on the server @ru ?)

Done!

The best source however is https://github.com/INL/nederlab-linguistic-enrichment/tree/master/resources (it's a private repo at INT but you probably still have access there from back then). This was all done in the scope of the Nederlab project in 2018.

I didn't yet find the original data for nld-vnn. I'm not sure where it stems from. @proycon any idea?

That's this one frog-bab-cgn.

I think the source materialis non-free unfortunately, hence the private repo.

[kosloot]

the 'dum' data is now updated.
nld-vnn is still to be done

[proycon]

This is now releasedin frogdata v0.21 , but nld-vnn remains to be done so the current state is not ideal