Fix group names

To avoid "Unknown group" errors.
Spotted by Shirayuki
http://translatewiki.net/wiki/Thread:Support/About_Extension_localisation_statistics

Change-Id: I658ad4cfdaef3a78a806ebc2da921f308c5abf42
config for 2013.08

ULS is at 1b55342 (2013-08-23).

Change-Id: Id29ccb58726c803b1cfce25c291985c7669a08d1
Merge "config for 2013.08"
Merge "Fix group names"