[super] Multilingual support in CKAN

[rgrp]

Multi-language:

• dataset and resource metadata (and other objects such as groups?)
  • Options for implementation in ​http://ckan.okfnpad.org/multilingual
• Field values in taxonomy (e.g. country names - Eurovoc)
  • #1665 Research into Eurovoc
  • Display Taxonomy in different languages
• Field values not in taxonomy (e.g. title & description)
  • Use extra fields e.g. _i18n_title_fr = Le data.
  • (If lots of fields would need translating then would consider having a new package for each language, linked together with PackageRelationships?. But I think it is just title and description (resource description etc. are so minor, not worth translating?), so using extra field better.)
• EC extension (templates, form)
  • Currently the pot file is just for CKAN core. New pot file for CKAN core and this extension? Or separate ones for extensions?

[dread]

Need to merge with #1682

[dread]

#1682 now merged in