ditz issue update
cmdline bug fix: avoid complaining about 'error in reading input' when executing code from a file
first cut at reducing the boilerplate in api doc entries: Prototype, Stack, and Summary are pretty self-evident; Example and See also are still left as headings
restore headings to markup for better text browser compatibility, but add classes for them so that css hacks can be used for layout tweaks
layout prototype for api sections with wide window