1. Update deps.
2. Copy files to temp directory only for fontforge engine.
3. Generate glyphs names and codepoints in webfont.js (codepoints
generation duplicated in generate.py now).
4. Pass icons ans streams to svgicons2svgfont.
5. Hashes appending in node engine.
6. codepoints option (undocumented, works only in node engine).
7. Node engine supports rename option.