Coding sprint and project ideas for [:days4:SAGE Days 4] June 12-17, 2007.

((NOTE: William Stein is currently reorganizing this page into sections.))

At some point a day or 2 before SD4, we'll have to: flesh these out more and print up the result in a nice latex document for everybody. Then when people choose actual projects, they will create subpages on the wiki to track their progress, etc.