[TYPO3-core] RFC #11684: Add support for flash messages in the backend

[Ingo Renner]

Hi all,

so here's also some documentation on flash messages. As with the 
documentation for the registry I'll add it to the wiki later.


Have fun flash messaging
Ingo

-- 
Ingo Renner
TYPO3 Core Developer, Release Manager TYPO3 4.2