docsite-publican still not use the config_map syntax in .tx/config file. See http://fedoraproject.org/wiki/Setting_up_a_document_with_Transifex#Step_5:_Map_Language_Codes
I've added our standard lang_map to .tx/config, ref https://git.fedorahosted.org/cgit/docs/docsite-publican.git/commit/?id=5b03dcbf6693f07f5cf8c55f059c47c1df874b09