add HW info about namespace()
add Teach Yourself to Code to resources
use python SimpleHTTPServer to serve page for ajax example
upgrade jquery
make Course Outline in README
fix formatting of blink() example
link to DocumentUp
add link to best JS tweet ever
require passing of W3C Validator and JSHint - closes #7
add more JS sandboxes
change dates for Summer 2013
add link to email list
rework topic order
Merge branch 'master' into gh-pages
rebuild slides