fixed css for slides, started on intro
trimmed classes
removed remainder of classes
printable version is donez
changed section number
removed unused pdfs
fixed season
changed old link in intro slide
fixed urls in links to course page
minor spacing issue on description
updated odt and pdf for reading-a-program
fixed odt and pdf again
mostly finished with 1
finished class one slides
fixed book titles in materials for class 1
a couple changes to review slide