* Dedicated DOCUMENTATION for get_path
* Comment out cross collection example
* Remove sanity exception, unneeded
* Remove extra empty lines
* Dedicated DOCUMENTATION for index_of filter plugin
* Dedicated DOCUMENTATION for to_paths filter plugin
* Add rst docs for filter plugins, update README
* lint and pep8 fixes
* filter plugin doc update for wantlist
* Because doc keys are sorted, add example of options in use
* Update docs
Co-authored-by: cidrblock <brad@thethorntons.net>
* WIP
* Add argspec validation to plugins, restructure tests
* Update docs
* Pre PY3.8 compat changes
* Run black to fix quotes
* Seems the order of missing keys varies between 2.9 and 2.10
* More error ordering issues fixed during argspec validation
* More black, wrong version
Co-authored-by: cidrblock <brad@thethorntons.net>