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

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

Note:
This is not a complete work, i.e. it is not supposed to update all url
calculations of generic ERP5. It is done so that:
- Other pending work can use it
- Demonstrate how the API should be used and test it

for a base document, given the form_id, document_reference and GET parameters

(provisional version, for testing)

Making "modified_object_list" consistent by always containing tuples and not
sometimes lists and sometimes tuples.

Also, update the files where they have been used

Using _getOb is always less costly than getattr, as it reduces the need to look in acquisition.

And simplify manage_exportProperties function accordingly

Also, we don't need to look for `transactionless` connection-id here,
as we don't use them in catalog methods.
And, update the files where we can use the new function.

Methods used in PaymentTransactionGroup_view

Always returned Accounting Transaction Lines
(there is no Payment Transaction Line portal type) that were sub-objects of
Payment Transactions. But now they can be also sub-objects of
Accounting Transactions.

So used '...AccountingTransactionLine...' instead of
'...PaymentTransactionLine...'

Previously, this could only be node_uid.
In future we should find a more generic approach to make this configurable.

Also, add two tests to testInventoryAPI to check queries with selection_domain
for getInventoryList and getMovementHistoryList.

/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-"