Draft grid preprocessor which sucessfully compiles.
Parse CSS4 Grid properties.
Parse CSS Box model CSS properties, dispatch others to FontConfig & injected dependency.
Unittest & fix abstract layout.
Unittest basic grid sizing.
Build testable gridlayout function, fix syntax errors.
Finish drafting CSS4 Grid support!
Draft grid width-sizing code.
Draft flow layout computation.
calc() interpretor & multidirectional text to be added later.
Draft new CatTrap API which hopefully is easier to implement.
Unit test calc() implementation!
Finish drafting shunting yard interpreter for calc().
Draft shunting yard interpreter for calc().
Draft public API for CatTrap.