improve inter/{UPPER,LOWER} (include mapping in SpecialCasing.txt)
add inter/CASEFOLD (C/F in CASEFOLD.txt)
Update inter/SCORE, inter/SCORE_TRAIN, with manpages.
Improve worst-case performance for inter/_NF-ORDER
Unify map file structure on all platform
add inter/REPLACE and alias inter/NOBOM to inter/REPLACE01FEFF
Update documentations
support DESTDIR in makefile
be case-sensitive for codec arguments (for bsdconv-opencc)
update to/_CP950
add from/_HKSCS{1999,2001,2004}
add from/_BIG5{E,-2003,-ETEN}
add inter/ZH-BONUS and inter/ZH-BONUS-PHRASE
add filter infrastructure