Cleanup conditional code.

code will fail with :
"local variable 'user' referenced before assignment".
As callee is handling the possibility of delayed frontend and / or
instance creation this is perfectly fine.

To allow viewing the wallpaper

User can send the error page to allow understanding the issue.

[erp5_hal_json_style/erp5_web_renderjs_ui] Render the form directly after a successfull call to Base_edit

This decreases the query number from 2 (POST to Base_edit -> redirect + GET to render the form) to 1 (POST to Base_edit -> render the form) and so improve the speed of ERP5JS.

To achieve this, apply so fixed in ERP5JS:
* rerender the panel/header after Base_edit (router is not called in such case, so, it must be manually called)
* fetch the page title from the form calculation (as the document context is not recalculated, only the form)
* force deleting the current field values, used by the relation field listbox search

This commit also force the full page refresh when diplaying a new document, in order to prevent keeping field values from the previous one (so bugs used to occur when using the previous/next document pagination).

Thanks to Tristan Cavelier for his work on this topic.

With a minor update of ghostscript, we again had weird changes:

AssertionError: 'ERP5 is a free software.\n\x0c' != 'ERP5 is a free software.\n\n \n\x0c'

URL convertion has to be done by javascript so that the code become useable for officejs.

This reverts commit 9f8dd82c.

This dialog is used by erp5_hal_json_style and select column should not be displayed there.

This feature of configuring openssl to disallow issuing more than one
certificate for the same common name as been disabled in SlapOS'
certificate_authority recipe, but instead of fixing this, we decided
to disable this test until the tool is completly rewritten using
caucase.

MySQLdb relies on garbage collection to close the connection. Relying
on such asynchronous event as the garbage collector is never a good idea,
and this can cause issues when the transaction associated with the
connection is started: because the connector is being replaced, it will
never be properly aborted. So do not take chances and do not leak open
connections: always close it.

So that it's more apparent that we are not leaking a potentially active
transaction on that connection.

The same error code can be used for different causes. Specifically, it can
be used for SQL-level syntax error (which this code intended to handle),
or it can be used for fulltext syntax error (which makes this code raise).
Also, drop forced-reconnection, because this means a still-established
connection make be kept around and completely detected from current
transaction, which may cause a database snapshot to be kept indefinitely
(actually, until mariadb's timeout), in turn causing performance issue
because of associated InnoDB snapshot.

   title is undefined, use self.name instead.

/reviewed-on nexedi/erp5!918

[erp5_ui_test_core, erp5_dms_ui_test, erp5_km_ui_test, erp5_configurator_standard_ui_test] setFile command does not need pause command now.

[erp5_web_renderjs_ui] Show select column in view dialog if listbox's select column checkbox is checked.

[erp5_configurator_standard_ui_test] Fix file uploading tests. Use setFile selenium command to avoid security error.