Generalize copyright headers in files Since we're distributing an AUTHORS file even in wheel packages now replace the specific copyright strings with ones which generally mention "mudpy authors" instead, refer to the AUTHORS file and Git history from the LICENSE file, and embed the generated list of authors in rendered versions of the license.
Convert mappings and sequences from flow to block For ease of readability, standardize on indented block-style YAML mapping and sequence definitions in sample data and configuration. Also wrap long lines, add explicit document start markers and introduce spaces in commented lines to ease future checking with the yamllint utility's default style rules.
Convert sample data to new style Use the new data model for the sample room and prop definitions.
Add descriptions to sample datafiles For improved clarity, add some basic descriptions to the provided sample datafiles in "_desc" metadata keys.
Move sample datafile copyrights into metadata Instead of using YAML comments in the provided sample datafiles, standardize on a "_copy" metadata key for greater extensibility.
Convert sample prop data file to YAML