[demo] make include into function call
Do some error tracking
Add to manual: extending Bagatto
Merge bagatto into root env instead of in dofile
Better naming for site/data attributes
Add set-output-dir!
Add api.md
Filter out empty strings in mmarkdown attributes
Emit pattern name on empty pattern
Handle empty wildcard and introduce markdown flags
A little formatting
Use threads for data loading, too
Factor out worker code a little
Add thread pool for writers
Correct anchor link
Minor typo updates
Update manual
Add root to paths in demo
Factor out error handling
Add some basic error handling
Correct typo