* Support serving static assets, use for stylesheet, script and images
* Better error pages, reject unsupported HTTP methods
* Replace lists with sortable tables with more detail (click headings to sort)
* Add pages for exploring source files, link from machine pages
- Can start from full source file list at http://localhost:8080/sourcefile/
(nw) JavaScript performance can drop when sorting really big tables,
e.g. the list of all source files, or the list of machines in some of
the fruit machine drivers. This update doesn't expose machine/device
information, just consolidating what's there. The wsgiref server is
adding headers to prevent caching, I'll look for a workaround.
