npm package not up-to-date

[livgust]

I can't seem to get version 3.4 using npm. I'd like to use the --columnsHaveTypes functionality but 3.2 doesn't support it, which seems to be the latest version available via npm.

[piranna]

I have fixed this in #3 and tests are passing, although I'm going to do some other fixes in the API to make it more robust.