Syndication 1.3.3: dashboard, background runs, console commands, fixes

1.3.3

Fixed

• Removing a feed, a source, a filter or an import was a fatal error on PHP 8 (an instance method called statically); removing an import now also removes its filters and the draft row.
• The import wizard started over on every click and never got past its first step; the name step lost what was typed.
• The type of a filter, taken from a form, was evaluated as PHP code; it must now be one of [SyndicationFilters] FilterArray.
• Option arrays and the SOAP answer of the exporting server are no longer unserialized with objects.
• The first fetch of an import failed because the modified parameter was left out; an unreachable server (an int answer of the SOAP client) was a fatal error.
• import_info and feed_info are complete views; the policy of import_info is view_import.
• The export and import cronjob parts skip feeds and imports that are not active, and a source whose node is gone no longer stops the run.
• An undefined constant, an ORDER BY in a COUNT query (PostgreSQL), a non-static version(), =& on function results.
• syndication.ini.append.php has its PHP wrapper.

Added

• A dashboard as the start page: what is exported, what is imported, the last runs and the problems found; it creates the tables when they are missing.
• Lists with filter, sort and paging, detail views for feeds and imports, removal with a confirmation step, inline notices, validation of the feed form, English and German strings; the left menu comes from parts/syndication/menu.tpl (navigation part ezsyndicationnavigationpart).
• Console commands ext:syndication:export, import, install and status, runnable cronjob classes for export_feed and import_feed (one run at a time, run time and result recorded), and "run now" in the admin as a background run with progress.