added french SIRET and SIREN numbers
added models for SIREN and SIRET fields
added prep_values() for SIREN/SIRET, according to common display format
Fix a few typos / spelling errors.
metadata commit : updated authors, changelog and "versionadded" tag on relevant
classes.
Merge branch 'master' into french-sirene

Conflicts:
	AUTHORS.rst
Minor updates to new SIRENE fields to handle the abstract base class. Other cosmetic changes.
Updated UK subdivisions list

 These choices will not please everyone, but I once spent a long time
 weighing all the options, and these seemed to please the majority:

- Metropolitan and non-metropolitan counties of England (not the
  ceremonial counties)
- Principal areas of Wales (not the preserved or historic counties)
- Counties of Northern Ireland (not the more recent, but less
  well-known, districts of Northern Ireland)
- Council areas of Scotland

The only change I've made from the linked sources was to rename
"Greater London" to "London".

This Follows on from discussions in
https://github.com/django/django-localflavor/pull/43
Removed welsh translations

These will be updated via Transifex
Merge pull request #126 from jturnbull/master

Updated UK subdivisions list
Added docs for changes to GB region lists.

Refs #43.