Method list() doesn't work with filenames with diacritics

[JakubMrozek]

I have these files on the FTP server:

nějaký zajímavý název.png
some file.png

When I call list() method, I get these results:

[ 
{ name: 'nÄaký zajímavý název.png' },
 { name: 'some file.png' } 
]

I fixed this by removing the 'binary' parameter from toString() method:
https://github.com/JakubMrozek/node-ftp/commit/26f86f312454f4678a224b227e29b663079f5f8e

Now it works great. Can I send you a pull request?

[JakubMrozek]

Hm, the problem is a little bit complicated: https://wiki.filezilla-project.org/Character_Set

[mscdex]

Yeah, we should check if the UTF-8 feature is available and use utf8 in that case instead of 'binary'.