Change color #a24689 to #875A7B
Commit https://github.com/odoo/enterprise/commit/8ac1c19fac7615fecd51e670f798d13158a4e53c
changed the odoo interface violet by changing the main LESS variable
but forgot there was many direct occurences in XML/HTML/... (for
example for the mobile browser color).
Even if it's community the odoo interface violet is used at many places
(module description, XML demo data, ...).
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).