Only expose non-layout slides by name.
Remove support for updating slideshow properties.
Begin parser.
Continue parser.
Refactor parser regex composition.
Refactor tests.
Begin parsing of content classes.
Make parser include text surrounding content classes.
Make parser handle unclosed content classes.
Create lexer.
Make parser use lexer.
Fix lint errors.
Make parse handle slide properties.
Use new parser for creating slides.
Update dependencies.