Just quick note that, as announced in August http://lists.wikimedia.org/pipermail/mediawiki-l/2012-August/039678.html, translatewiki.net yesterday dropped support for about 260 extensions/message groups. People still using code from SVN will no longer have the localisation updates they might expect. If you need or care about one of them and the respective localisation, you should get in contact with its developer(s) (or become one) so that it's migrated to Git.https://www.mediawiki.org/wiki/Git/Conversion/Extensions_queue Most or all of them need some tender loving care anyway.
The list of removed message groups is in https://gerrit.wikimedia.org/r/#/c/26045/ and reproduced below for your convenience.
Sorry for the crossposting, Nemo
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