Support various encodings other than UTF8.
Originally, node-irc doesn't support encodings and there's a pull request of supporting encodings for node-irc but it's not been accepted for 5 months.
So I forked the node-irc repo to support encodings and I hope that until the pull request is accepted, please use my repo instead of martynsmith's for package.json. I'll continuously update the repo with latest version of martynsmith's.
And the other patch is adding new line at end of file. You can merge this or not.
Add newline at end of file
Support various encodings.