Migration of website module to new API.
The tricky phase is ir_http.py : we need to use `request.env`
only when the authenfication phase is done. Normally by
calling `super` of `_dispatch` method, but website module
required it to be done before. This is important since
`env`is a lazy property of `request` object.
Some hack were kept since this commit is a migration ('RequestUID'
in ir.http, ...)
Some docstrings were added.
This commit impact crm, website, website_sale and web_planner modules because it
- add planner for website and website_sale
- improve planner notebook by setting texterea and input size to 100% and using col-md-* class
- split js code into common part (used in backend and frontend) and backend part (only for backend)
- adapt some tour, since every page will have the planner modal in its DOM, the tour selectors msut be more accurate
- introduce some style fixes and adaptations
- ...
Frédéric Gilson