OPAL-2680 Taxonomy editor uses the LocalizedEditor
OPAL-2680 Taxonomy can be edited (not just added)
OPAL-2680 Vocabularies can be added, edited and deleted
OPAL-2680 Vocabulary can be updated, preserving the vocabularies order
OPAL-2680 Aloow navigation to next/previous vocabulary in a taxonomy
OPAL-2680 Term edition modal added.