[FIX] Some fixes for base_import_module

- Properly check unmet dependencies
- Set imported module's state to 'installed'
- Fix bad translation usage
[IMP] website: google analytic - use Automatic Cookie Domain Configuration.

Automatic Cookie Domain Configuration simplifies cross domain tracking implementations by automatically writing cookies to the highest level domain possible when the auto parameter is used. When used on the domain www.example.co.uk, it will try to write cookies in the following order:

co.uk
example.co.uk
www.example.co.uk
Analytics.js will fail to write a cookie on co.uk but will succeed on example.co.uk. Since a cookie was succesfully written on a higher level domain, www.example.co.uk will be skipped.
[IMP] base: Odoo-ification and bootstrapification from the "About Us" popup
[ADD] website_sale_digital
[FIX] removed bad comments from previous commit
[REVERT] 2 previous commits (f3333f9 and 6e5b09a)
[IMP] distribute branding on @groups instead of disabling edition

Avoids 2 rendering passes, and allows editing e.g. events detail page, which
couldn't be done (due to groups=public in a mail component)

fixes #1994