outdated wiki information

[JuliaSprenger]

In the wiki, e.g. https://github.com/G-Node/nix/wiki/Model-Definition, an old version of the odML library is depicted, that still features value objects.

[jgrewe]

Hi @JuliaSprenger actually, it is still valid. In fact, the 1.4.x versions in nix still use the old style odml model. This will change with the 1.5 release and then this info indeed needs to be update.
I will keep this issue open as a reminder to make the changes once 1.5 is released

[JuliaSprenger]

Yes, you are right. I forgot that the nixio 1.5 is still in beta mode.