Empty tag list

[noorbakerally]

When adding a new vocabulary, and selecting add tag, the tag list is empty. Having a look at the code, in the Controller Vocabulary.js, at 4 places, the name "listTags" is used, but it is never defined nor created somewhere else. As a result, when iterating on the "listTags" in the view, it is empty.

[pyvandenbussche]

I added some files to populate the database (and updated the readme). You should be able to populate all the languages and a list of tags (you can of course update them). At the moment the edition does not enable to modify the languages neither the tags. Any help welocmed!