[ticket/11366] Extension's version's check
* Nicofuma/ticket/11366: (29 commits)
[ticket/11366] Fix headings css in list page
[ticket/11366] Add config value in schema_data.sql
[ticket/11366] Fix HTML
[ticket/11366] Exchange links and settings' form
[ticket/11366] Remove the extra {S_FORM_TOKEN}
[ticket/11366] Move the links to the top of the page
[ticket/11366] Hide the version check settings by default
[ticket/11366] Versions, options and actions heading should be centered
[ticket/11366] Better language string for "recheck all"
[ticket/11366] Move "recheck all" link
[ticket/11366] Add $config['extension_force_unstable']
[ticket/11366] Use force_cache on the list page
[ticket/11366] Add recheck-all link
[ticket/11366] Force the use of the cache on the list page
[ticket/11366] Update FILE_NOT_FOUND language string
[ticket/11366] Fix whitespaces
[ticket/11366] Update FILE_NOT_FOUND language string
[ticket/11366] Update var names
[ticket/11366] Align language strings
[ticket/11366] Fix detailed view
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