[TYPO3-core] RFC #12164: Use flashmessages to display messages in fileadmin

[Rupert Germann]

Hi,

this is a SVN patch request.

Type: clean-up/ GUI improvement

Bugtracker references:
http://bugs.typo3.org/view.php?id=12164

Branches: Trunk

Problem:
the error messages from t3lib_extFileFunc (fileadmin) are not displayed 
as flashmessages

Solution:
use flashmessages to display these errors

I added 2 screenshots showing the state before and after the patch.

greets
rupert