- Various architectural and standards-compatibility improvements (minor breaking changes):
- Improved type detection mechanism (including remote descriptors)
- Added `resources` module including `File/Text/Json/TableResource`
- Deprecated `resource.type` argument -- use the classes above
- Changed `catalog.packages[]` to `catalog.datasets[].package`
- Made `resource.schema` optional (`resource.has_schema` is removed)
- Made `resource.normpath` optional (`resource.normdata` is removed)
- Standards-compatability improvements: profile, stats
- Renamed `system/plugin.select_Check/etc` to `system/plugin.select_check_class/etc`