TYPO3 Core

In the new Extension Manager, in the Translation Handling tab, the flag representing the Catalan language is the Canadian flag. It should be the flag of Catalonia.

The reason for this is that the Catalan and Canadian flags does not respect the implicit naming convention of flags :
Until now, all flags that correspond to a language are named like this : "[ISO code].png" and "[ISO code]-overlay.png".
All flags that do not correspond to a language (i.e. Wales or European Union) are named like this : "[Country or region].png" and [Country and region]-overlay.png".

But the Catalan flag is named "catalonia.png" even if it correspond to a language and the Canadian flag is named "ca.png" (CA being the country iso-code but there is indeed no such thing as a Canadian language).

I did not manage to include the file renamings in the included patch, so please change the following (in typo3\sysext\t3skin\images\flags\) :
- ca.png > canada.png
ca-overlay > canada-overlay.png
catalonia.png > ca.png
catalonia-overlay -> ca-overlay.png
(issue imported from #M16919)