- Remove 2 wrong versions of wctomb and 2 wrong versions of wcstombs

- Implement new versions of wctomb and wcstombs, which consider the language set by setlocale() and work according to all behaviours I could find when testing under WinXP SP2.
  This was tested with an own test suite (which I can commit as well if anyone is interested)
- Do a real conversion to MultiByte characters using wctomb in fputwc and vfwprintf. (verified under WinXP SP2)
- Set 'MSVCRT___lc_codepage' and 'MSVCRT___lc_collate_cp' to 1252 by default ("C" locale) and not the current active codepage (which might not work with i.e. Eastern codepages)
- Add a new check for 'MultiByteCount < 0' to WideCharToMultiByte (also verified under WinXP SP2)
- Change MB_LEN_MAX back to 2, the value 5 only applies to newer CRT's (msvcrt only handles single-byte and double-byte characters)
- Don't compile the Wine-imported 'wcscpy_s', it isn't available in msvcrt

svn path=/trunk/; revision=34557