Remove warning about ES6 module format churn

barring anything O_O it should be finalized as of July.
Use ast-util@0.5.1 to fix scope bindings for named function expressions.

https://github.com/benjamn/ast-types/pull/68
v0.8.1
Add a changelog note for v0.8.1.
Fix the link to the homepage.
Ensure to namespace function/class declarations from export default.

Without this these function names may collide with functions of the same name in other modules.
Add a changelog for v0.8.2.
Add a polyfill for Error.captureStackTrace.
Make the captureStackTrace polyfill more real.

We also need to move it to the top so that it’s available when the
libraries are all loaded.
v0.8.2
Add some tests covering recent bugs.
Improved compatibility of mkdirpSync
Merge branch 'pr/173'

* pr/173:
  Improved compatibility of mkdirpSync
Fix spacing.
Make mkdirSync more robust.

This version does not do any path splitting or concatenation on its own, but instead simply uses path.dirname() to get parent paths until it can no longer go up any higher. This will happen either at '/' (on *nix) or e.g. 'C:\' (on Windows) for absolute paths, and at '.' for relative paths.
v0.8.3
Update changelog for v0.8.3.
Prevent outputting empty statements.

Closes #175.
preliminar work to support namespace identifiers
Enable namespace imports with the CommonJS formatter.