Adding CSE materials for Git and PDB.
Removing extraneous file from tracking.
Updating with PDF of handout.
Adding five stages of debugging slides.
Adding statistics examples for debugging.
Updating final(?) version of materials for davis68, pre-boot-camp.
Thus ever it goes:  these are the final ones.
Converting binary formats to HTML; removing binary files.
Removed one more binary file.
Converted HTML to Markdown.
Merge pull request #6 from davis68/gh-pages

davis68's modification of thw+swc for Git, PDB.