Add MXCLABEField for Mexico

[scaramagus]

This pull request adds a custom field for Clave Bancaria Estandarizada, used in all financial transactions in Mexico.

More info (in spanish):
https://es.wikipedia.org/wiki/CLABE

[benkonrath]

Can you change this to the English version of this wikipedia page?

[benkonrath]

Thanks for this contribution! Just those small points to fix up. I was hoping to get this into the 1.3 release which I want to release 6 or 7 May.

It probably makes sense to also get the Spanish translations included with the release of this feature which means you'd need to add the translations in Transifex after this is merged. If you don't have access to Transifex , the timing won't work for the 1.3 release.

[scaramagus]

@benkonrath Thanks for the feedback! I made the changes you requested. Regarding translations, unfortunately I don't have access to Transifex, so it seems this PR will have to wait for the next release, unless something can be done about it...

[benkonrath]

Let's just push this off until the next release. I hope that's ok for you.

[benkonrath]

@agustin380 I just released 1.3. Can you change the versionadded to 1.4 and rebase so that I can merge this right away. Thanks.

[scaramagus]

@benkonrath Done. I suppose translations will be taken care of later?

[benkonrath]

Thanks for correcting the date in the changelog. I'm not yet fully living in May it seems. :)

Merged via 4233c94.

[benkonrath]

@agustin380 Translations are done with Transifex. You can signup and request access here:

https://www.transifex.com/django/django-localflavor/

You can ping claudep if you have an questions or run into trouble. Claude periodically syncs the translations from Transifex to this repo.

[scaramagus]

@claudep Can you give me access to Transifex? I'd like to take care of the translations for this feature.

[claudep]

@agustin380 Did you request to be member of some team? Are you waiting for the coordinator approval? If yes, which team?

[scaramagus]

@claudep I requested access to several Spanish dialects in https://www.transifex.com/django/django-localflavor/, I think they were the Argentina and Mexico ones (and neutral).

[claudep]

I added you to es ans es_MX. For es_AR, you should ping @ramiro who is coordinator.

[scaramagus]

Thank you!