- Now Sympa::Language is singleton class.  Get instance using Sympa::Language->instance().
- Changed names of functions.
  CanonicLang     => canonic_lang
  ImplicatedLangs => implicated_langs
  Lang2Locale     => lang2locale
  Lang2Locale_old => lang2oldlocale (ex. Lang2Locale() in Language package)
  NegotiateLang   => negotiate_lang
- Changed names of methods (formerly functions).
  PushLang        => push_lang
  PopLang         => pop_lang (allows multiple arguments)
  SetLang         => set_lang (ditto)
  GetLangName     => native_name (optional argment was deprecated)
  GetLang         => get_lang
  sympa_dgettext  => dgettext
- Added a new method gettext_sprintf().  It will be extracted by po/xgettext.pl.
- Now POSIX locale will be set at inside of gettext_sprintf() and gettext_strftime().  Native strftime(), sprintf() etc. won't be affected by set_lang().
- maketext() was deprecated.
- GetCharset() was deprecated.  Use tools::lang2charset().


git-svn-id: https://subversion.renater.fr/sympa/branches/sympa-6.2-branch@10608 05aa8bb8-cd2b-0410-b1d7-8918dfa770ce