[TYPO3-core] Improvement of release merge tool

[Markus Klein]

> 
> Well, this link:
> 
> https://review.typo3.org/#q,project:TYPO3v4/Core+topic:31622,n,z
> 
> Displays all relevant review's (the master one is already merged, the other
> three are open). That would do it, right?
> 
> Cheers,
> Ernesto

Yes. Perfect.
Funny, though, if you remove the project filter it only shows the open ones.
https://review.typo3.org/#q,topic:31622,n,z
*confused* Any explanation?

Thanks.
Markus