Remove old exercises from class3.
Add slide about chaining.
Add slide about jQuery API.
Add slide about removing.
Add ajax examples
Remove old exercises for class 4.
More changes for last class.
Fix stuff.
Remove renamed folder
Add goals to each week.
Split slide.
Add notes about callback functions.
Add useful references links to all classes.
Add shorthand document ready.
Add link to example for all activities.
Fix errors in examples.
Add example links to activities.
Make sure slides work in 1024x768.
Make sure slides work in 1024x768.
Make sure slides work in 1024x768.