fix: reference schemas
schema extensions: users, categories, badges, metadata
fix: call DataModel.Default.compileUniverse on snap startup
elastic search: path converters
elastic api: resetAdb, better path conversion
fix: retrieve _source, no metadata in GET
elastic api: alter method; cleanup
test suite cleanup
comment on versioning-related schemas
testing: monoid instance for scripts
Test.Story: helpers
Test.Story: first arbitrary script generator with interesting features