[TYPO3-core] RFC: #11052: Show Warning if memcache is configured but not installed / working on the server

[Steffen Kamper]

REMINDER #1

Steffen Kamper schrieb:
> Hi,
> 
> here is an updated patch where the configuration is scanned and tested 
> each configured server. if memcache fails with one of these 
> configuration it's displayed which configuration failed (see screenshot)
> 
> vg Steffen
> 
> 
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