images for week 5 presi
 * update index, emphasize required assignments and attendance in the assessment portion
 * update outline with full week 05 reading.
 * update week04 presentation with Dan's suggestions
 * push forward on week 05 presentation
 * include notes from the homework in week 4 slides
 * add a tool to create exertped code samples
 * make an exertped code sample file for this week.
remove initial spaces to improve the cut-and-pastability of the samples
add notes on type-along.txt
Merge pull request #2 from cewing/master

update 1-29-13