Includes:
* update checker refactored to \core\update\ namespace
* plugininfo classes refactored to \core\plugininfo\ namespace
* plugin_manager renamed to core_plugin_manager
* redirect back to original page after plugin uninstall
* fixed assign subplugin uninstall
* move assign subplugins under the assignment in admin tree
* fixed plugininfo for all question related plugin types
* auth uninstall support
* added missing block dependencies
* added theme uninstall
* subplugin types are following the plugin on plugin overview page
* several performance improvements in plugin manager
* new warnigns when plugininfo are outdated or missing
* multiple fixes and other improvements
When a messaging output is set to forced, users should not be able to change
that. Regression intoroduced in bb3546f3 made possible to change checkboxes
(but not avoid forced settings). This fix replace checkboxes for 'forced'
settings with the corresponding message, similar to how it worked for
disallowed before.
Existing user messaging preferences should accomodate default settings and
permissions. This also includes some changes to default outputs preferences.
Signed-off-by: Ruslan Kabalin <ruslan.kabalin@luns.net.uk>
This introduces the new page where admin may change the permissions and
defaults for particular combination of message processors and providers.
Signed-off-by: Ruslan Kabalin <ruslan.kabalin@luns.net.uk>