LanguageCommand / The clients must load the language's interpreter.

[Hjdskes]

For an idea as to how to fix Eclipse, see http://stackoverflow.com/questions/29707758/programmatically-start-an-osgi-folder-bundle

[Hjdskes]

See https://github.com/spoofax-shell/spoofax-shell/tree/demo for how to at least fix it for one language such that we can demo.