No more per-call str_path separators, everyone should use the `settings.str_path_separator`.
Adds str_path handling to Section.get_item, Section.get_section, and Section.__contains__
1.23.0
* Section.load(), settings.load_sources * Python keywords can be item/section names * Section.add_schema() * item_getter and item_setter settings renamed to key_getter and key_setter
1.20.1
Config declarations renamed to schemas which is what they are
1.20.0
Added a way to safely access sections and items (not values) irrespective of user customisations: `Section.get_item(*key)` and `Section.get_section(*key)`
1.19.0
PlainConfig` added for users who don't need the rich configuration `Item` functionality and instead want to see just calculated values of configuration items instead.