Refactored APIs for output sinks, added css path info
pull all span whose class starts w/ zz
Improve p.referenceline consistency check
Added json output sink to folio parser
Added class helper methods to ElementRt
Updated method signature for adding to folio import output sinks
refactored delete into replace method
Updated folio import rules
Added stack to manage current_text_container
Updated todo markers
Updated folio import rules
Improved folio import rules
Updated folio import rules