ANDAN:
(*) https://www.npmjs.com/package/jschardet (https://github.com/aadsm/jschardet)
    - mocha da un error: Error: global leak detected: confidence
(+) https://www.npmjs.com/package/charset-detector (https://github.com/btd/node-charset-detector)
(+) https://www.npmjs.com/package/is-utf8 (https://github.com/wayfind/is-utf8)
    - Sólo detecta si es o no utf-8
(+) https://www.npmjs.com/package/isutf8 (https://github.com/hcodes/isutf8)
    - Sólo detecta si es o no utf-8

FALLAN:
(-) https://www.npmjs.com/package/detect-character-encoding : error en npm install
(-) https://www.npmjs.com/package/node-icu-charset-detector : error en npm install (requiere python)

(+) andan
(*) andan con errores
(-) No andan