Adding a new Translation:
- Add LANG-CODE to each LINGUAS file
- edit po/wesnoth-man*/wesnoth-man*.cfg to have the LANGCODE added here, too
- "msginit -l LANG_CODE --no-translator" in each domain dir
## "make LANG_CODE.po-create" in each domain dir ## not needed/working
- and than commiting changed LINGUAS and new LANG_CODE.po files
- svn add po/wesnoth*/LANG-CODE.po
- svn ci po/wesnoth*/LANG-CODE.po po/*/LINGUAS
- add data/languages/langcode_COUNTRYCODE.cfg
- add language to data/core/about.cfg
- make sure that po/wesnoth/LANCODE.po does really compile (plural forms and rest of header)