[feature] Language tag (fr, en-US) should be used for language settings in...
[feature] Language tag (fr, en-US) should be used for language settings in configuration files. Old style (fr or fr_FR, en_US) may also be used. Note that names of catalogue files were not changed (fr.po, en_US.po). By now, the language "en-US" can be used separately from "en" language! git-svn-id: https://subversion.renater.fr/sympa/branches/sympa-6.2-branch@8959 05aa8bb8-cd2b-0410-b1d7-8918dfa770ce