Anchovy

* Fix packaging issues.

**Full Changelog**: https://github.com/pydsigner/anchovy/compare/v0.3.1...v0.3.2

* Fix release bugs.

**Full Changelog**: https://github.com/pydsigner/anchovy/compare/v0.3.0...v0.3.1

* Supply `Context` to path matcher functions.

**Full Changelog**: https://github.com/pydsigner/anchovy/compare/v0.2.0...v0.3.0

* Significant refactor to add new `Rule` class which manages input path management and output path calculation, increasing configurability and decreasing complexity of writing new `Step`s.
* Docstrings added for all public classes, methods, and functions.

**Full Changelog**: https://github.com/pydsigner/anchovy/compare/v0.1.0...v0.2.0

* Moved `Context` and `Stage` from `anchovy.context` and `anchovy.stage` into `anchovy.core`.
* Improved documentation significantly.
* Fixed path-matching on Windows.
* Improved Markdown rendering support.
* Made use of `anchovy.helpers` more consistent.

**Full Changelog**: https://github.com/pydsigner/anchovy/compare/v0.0.4...v0.1.0

Documentation and packaging improvements.