[Style] added branch
[Style] first round of edits
[Style] first draft wrapped up
[Style] feedback edits
[Style] comments from PLT
[Style] more revisions
[Style] parameterize explained
[Style] fixed #% language
[Style] Shriram's big criticism
[Style] Eli's suggestions
[Style] testing, comments, some reorg; Vincent's comments
[Style] Vincent's suggestions
[Style] Matthews' exn handler request
[Style] Casey's message, boxes around all labeled code snippets
[Style] robby fixes
[Style] explain comments in document
[Style] values vs structs for return values
[Style] added etiquette file for Racketeers
[Style] old fixes, can't recall source
[Style] added sub-modules for testing to 'unit' section, Eli's email from 30 April 2012