Slate 0.4.1

• Fixed static builds on Linux (#71).
• Small documentation improvements.

This is a Linux-only release, as certain issues had been preventing Linux binaries from being created since v0.1.0. The v0.4.0 release contains the latest binaries for Mac and Windows:

https://github.com/mitchcurtis/slate/releases/tag/v0.4.0