Doc tweak
Filled in support for markdown and json source functions
Using a separate css file for example
Big refactor

This re-thinks the interface quite a bit and introduces the core
generator mechanism. Things should settle down at this point and
new features can be added more easily.
Doc tweaks
More big changes - we're officially unstable
Shared assets for samples
Interim checkin

Things are still unstable, but the samples are working.
Commit before refactor list result

Rather than build a proplist of name and value for a file wildcard
match, we return a list. This idea of having an implicit 'name' for
each file is bad. We have the item itself, marked with __file__, and
then use filters to find that item, either by file name or some other
attribute.
Back to stable state

Check out the samples for how-tos. README and other docs are likely
stale at this point.
Note on creating an index for samples
Renamed for_name filter to find
Cleanup handling of data sources
Support for tracing
Copyright banners and whitespace
Fix to file generator

It thought a dir was a file.
plist:filter_by_value/3
Handling undefined values in find filter
Changed order of map_template

Including the template before the list.
Ability to specify template map context name