values of redirect_to_added_slash, for the Web Site and Web Section in the test

As acquired property, that is Boolean to define if
the 301 redirect would happen when publishing the url without slash

with its reference and containing trailing slash.
301 redirection should be raised to the url without slash.

Also, fix test_WebSection_add_trailing_slash_in_url since now it expects
permanent redirection (301)

raise 301 redirect to the url excluding the slash

This is different than Web Section.
But in Web Page we need no-slash since we would render all other sources
in the container Web Section, so keeping the caches

is called in Web Sections or Web Sites.

These expected that absolute_url returned no trailing slash,
so updates in code and page templates were needed

Also, url that is published in
test_14_AccessWebSiteForWithDifferentUserPreferences
iotherwise the response is the redirect, making the test fail

from double slashes. This to give compatibility with definition
in actions on Web Section and Web Site portal types, for which now
absolute_url returns a trailing slash, so definitions like:

string:${object_url}/WebSection_xxx

would create a url with double slashes

in case we publish with different languages

Better for Search Engine Optimization

Also, raise redirect to add trailing slash only if request is GET

renderJS gadget HTML uses relative URLs to link to there javascript/CSS files.
Absolute URL calculation is resolved dynamically by the browser when loading the gadget.

When accessing an ERP5 web section without a trailing / in the URL, the browser will calculate absolute URL from the parent document and not the web site itself.

Example:
In http://foo.com/web_site_module/bar , the relative URL couscous.js will be resolved http://foo.com/web_site_module/couscous.js
If couscous.js is a document from DMS (Web Page for example), such URL can not be resolved and leads to a 404 error.

One solution to solve this is to redirect (302) the browser when accessing a Web Section (Web Site is a web section) directly in ERP5.
Example:
http://foo.com/web_site_module/bar ->  http://foo.com/web_site_module/bar/
But  http://foo.com/web_site_module/bar/view should not redirect

/reviewed-on nexedi/erp5!426

- Reindex the support request before add it as HTML Post follow up.
- Use custome message when no post content provided.
This should fix the 502 Proxy error and 400 error when creating a
 new Support Request with/without description.

Use a custom ERP5 script instead global worklist searching.

ckeditor 4.5.3 cannot work properly on Android and iPhone. Before update it to latest
version. We need to check the compatibility issue of other officejs. For now, just use
textarea instead buggy ckeditor.

And update the test for textarea.

Solved issues:
- Restore button didn't work after change listbox.changeState to listbox.render.
- Restore button should restore the listbox to page zero.
- Restore button should be enabled when to refresh the page with expected parameters.

Some listboxes in ERP5 use "| desc" to sort elements, even if it
didn't work (ie: Base_viewEventList/listbox).
Also, as "asc" is working (because descending sort is defined by
whitelist), adding "desc" makes things more consistent

/reviewed-on nexedi/erp5!419

-  close opened tags
-  replace TH with TD for data cells
-  prefix invalid attributes "line" and "column" with "data-"

When a user triggers `NotificationTool.sendMessage(recipient=user_id)` to a recipient she does not have access permission on, it now causes this problem (the caller context is a custom script with manager proxy role):

```
  Module Products.ERP5.Tool.NotificationTool, line 322, in sendMessage
    person_value = getUserValueByUserId(person)
  Module Products.ERP5.Tool.NotificationTool, line 291, in getUserValueByUserId
    return portal.restrictedTraverse(user['path'])
  Module OFS.Traversable, line 317, in restrictedTraverse
    return self.unrestrictedTraverse(path, default, restricted=True)
  Module OFS.Traversable, line 251, in unrestrictedTraverse
   - __traceback_info__: (['redacted_person_id'], 'person_module')
    next = guarded_getattr(obj, name)
Unauthorized: You are not allowed to access 'person_module' in this context
```

This is a regression caused by 62d8d3ac .

That particular case was working before, because the person was looked up using [catalog]( https://lab.nexedi.com/nexedi/erp5/blob/882f0022c7af4f36c2f31643498ac0b5d82c2217/product/ERP5/Tool/NotificationTool.py#L321-322) so the proxy role from the caller script was taken in to account.

Now, we can say that the approach suggested here is not correct and document that the current logged in user must have permission to access the person documents involved as sender or recipient in the notification.

Then, if we need to send message to persons the current user does not have access permission, instead  of using:
```python
portal.portal_notifications.sendMessage(recipient=person.getUserId())
```

just do:
```python
portal.portal_notifications.sendMessage(recipient=person)
```

but the later does not allow for using activities.

/cc @vpelletier @gabriel 


/reviewed-on nexedi/erp5!395

This commit contains two main changes:
- Add worklist gadget to the homepage.
- Remove the child's `changeState` calls in homepage.
  This was done by using customized `form_list_sr`. Which can let the listbox
  has same appearance like `form_view` but use same argument passing mechanism
  as `form_list`.

/reviewed-on nexedi/erp5!415

[erp5_officejs] Add cachealldocs Storage to cache allDocs call results and then service get requests with them