This reverts commit b4d7b7e6.
Odoo always uses term eCommerce

No functional changes, only rewrite the code with
the api.v8 which more pythonic and smooth.

and a bit more messages.

model has been renamed to mail.channel to prepare the slack modeling.

In future commits the mail.group model will be merged with the channel
model from im_chat. The first move is to rename mail.group into
mail.channel to have a model that will unite both features.

renamed to mail.channel.

At this point no model has been renamed; only files have been moved.
n mail, mail_group files have been renamed to mail_channel. The
website_mail_group addon has been renamed to website_mail_channel.
Some internal references have been updated (templates, linked files).

to avoid confusion with mass mailing mailing lists and newsletters.

bzr revid: tde@openerp.com-20140509125118-obvdjkgreyiez8k9

bzr revid: fp@tinyerp.com-20140313194801-24f5f9s03rk663d6