add some single char escaping routines to fmt.h
pull in html5 entities from w3c and use those to do a proper scan_html decoding
fix an off-by-one in fmt_to_array
add a ton of unit tests for the fmt routines
write generic stralloc and array textcode wrapper functions
change textcode API to use long instead of int
add cescape fmt and scan functions to textcode
add fmt_foldwhitespace to textcode
leitner