Doxdox

- Set the rejection reason to an Error object.
- Updated documentation.
- Updated packages.
- Added yarn support.

- Prevent update notification from displaying when piping output.
- Updated packages.

- Changed `parseInput` to `parseFile`
- Added `setConfigDefaults` method.
- Added ability to load custom parsers.
- Filter out files with no methods.
- Updated packages.

- Added update-notifier.

- Added local plugin resolution.
- Updated packages.

- Fixed issue with loading custom parsers and plugins.