Merge pull request purescript-node#7 from purescript-node/stuff

A bunch of stuff

Release v0.1.1

Fix write, writeString, and fill, which used to immediately throw errors at
runtime upon use.

Release v0.1.0

* Support for compiler version 0.7
* Use Int instead of Number where appropriate (which happens to be everywhere)

Release v0.1.0-rc.1

* Support for compiler version 0.7
* Use Int instead of Number where appropriate (which happens to be everywhere)

Add generated docs