This reverts commit a87db49b.

Change max age to 1 hour and 1 day

Do not load any JS, because the gadget may crash too, as no erp5 field is rendered

Prevent img to increase the page width.

Most listbox functionnalities are not supported by web_js_style for now, as no form is used by default

Their contents is already provided by the HTML page template.

Generate a hfeed in the HTML rendering.
https://indieweb.org/feed

Provide a RSS feed automatically.

Only generate the feed when rendering the web section in view mode.

Extract all feed informations in Javascript to allow styling it as a blog.

Add bt5 dependency to erp5_dms to retrieve the author title.

This allows called script to call script on them

See merge request !1509

See merge request !1510

we have such error:
....
if context.getValidationState() in ["draft", "deleted", "cancelled", "archived"]:
  Module Products.ERP5Type.Accessor.WorkflowState, line 60, in __call__
    return wf._getWorkflowStateOf(instance, id_only=1)
  Module Products.ERP5Type.Core.Workflow, line 609, in _getWorkflowStateOf
    state_id = 'state_' + status.get(self.getStateVariable(), None)
TypeError: cannot concatenate 'str' and 'NoneType' objects

This stopped working long time ago, probably with slapos commit aa102f28f
(erp5testnode: use newer shellinabox, with a caddy frontend, 2018-09-21)

Web Site/Section were still indexable when rendering in xhtml style.

See 6c5db57b

See merge request nexedi/erp5!1504

See merge request nexedi/erp5!1508

using parallel list fields cause HTML to be very big and is not good
for usability, because we typically select a lot of values in these fields.

This can sometimes be useful during development

See merge request nexedi/erp5!1502

ERP5ReportTestCase also import ERP5TypeTestCase, so if we reload it it
patches again getRequest to a function calling itself and causing
RecursionError.

See merge request !1505

If ignore_layout=1 is present in url query, static web section show the default view so user can modify properties

But for url like
https://erp5/web_site_module/static_web_site/web_page_module/111?ignore_layout:int=1&portal_skin=Slide...
static web section should do redirection instead of showing the default view

It's difficult to distinguish if it should do redirection or show the
default view for all kinds of url

To make it simple, if portal_skin is present in url query, static web
section will do redirection event if ignore_layout is present

See merge request nexedi/erp5!1486

See merge request nexedi/erp5!1498

Double translation happened when:

- For sql_catalog.isValidColumn(name)
- When search_columns is empty
- When selection_sort_order and sort_columns are empty

So delaying translation on column titles until *_column_list are finalised.

Before this fix, double translation on Sale Order title was happened every time
displaying a Sale Order Line, for example.

Category spreadsheet import did not delete categories if some documents
where related to these categories. While this may make sense when using
this import in site with already some data, in many cases, we want to
be able to delete the categories, so that the result is that the category
tree match the imported spreadsheet.

This extend the dialog to support a new "force delete" mode that delete
categories even if they are use, leaving the documents using categories
with broken relations.