[TYPO3-core] RFC: Feature Request #7150: Add pageUnavailable_handling for system problems and maintenance

[Jeff Segars]

>  This is a SVN patch request.

>  Type: Feature

>  Bugtracker references: http://bugs.typo3.org/view.php?id=7150

>  Branches: Trunk

>  Problem:
>  When a site has database connection problems or other major system
> issues, the only option is for a default error message to be
> displayed.    Likewise, there's not an easy way to temporarily bring
> a site down for maintenance.

>  Solution:
>  Add pageUnavailable_handling, which is equivalent to the
> pageNotFound_handling that already exists in core.  This allows
> custom maintenance pages that automatically appear and disappear when
> a site is broken.  It's also possible to click one checkbox in the
> All Configuration section of the Install Tool to manually disable a
> site during upgrades or maintenance.

Reminder #1.  Still need another +1 in addition to Steffen's.

Thanks,
Jeff