bug found in baidu(ubuntu...), bug_chn

option for tounicode-map
get unicode from charname using fontforge (test with 'Font' croc.pdf)
also for CID Type 0


round coordinate and check if it'll be faster

argument auto-completion

use absolute positioning for long whitespace
add fallback font for ' ', or create glyph for it
rename single-html -> embed-font/image/css ...

==Future==
color invert
detect duplicate base fonts when embedding
disable selection if we know unicode is wrong
combine lines (unwarp)
Printing
multiple charcode mapped to a same glyph
check if we can add information to the font, and let browsers show ligatures automatically
custom html/css dir
native support for image
native support for draw