[TYPO3-core] RFC #16926: database isn't updated during workspace-migration wizard

[François Suter]

Hi,

> Problem:
> When the workspaces migration wizard runs though eg. the
> "sys_workspace_stage" table might not exists and should be created
> during the upgrade-process.

Committed Ernesto's v5 to trunk (revision 10159) since the fix to #17114 
is in.

Tolleiv I didn't want to hijack your commit, but I thought I would go 
ahead with this one as it was related to #17114. I hope you don't mind.

Cheers

-- 

Francois Suter
Cobweb Development Sarl - http://www.cobweb.ch