* update copyright year
* switch relevant files to UTF-8 (without signature).
It's 2013 for crying out loud: if your file editor or file viewer
can't handle plain UTF-8, go back to the 1980s!
* also rename autogen.sh to bootstrap.sh
* sets DOS locale using the same algorithm as MS' diskcopy.dll
* uses CONFIG.SYS menu to allow US vs non US selection
* only applies to WinME/MS-DOS for now (no FreeDOS)
* also renamed msdos.c -> dos.c with minor improvements
* also added missing FreeDOS credits in about dialog
Pete Batard