Merge pull request #3 from beautyjoy/gh-pages

doit
Merge pull request #4 from beautyjoy/gh-pages

merging changes into xtitter
renaming random activity and changing older topics
fixing up the random section of topic 2
syntax fixes
again, some fixes
added kaleidoscope to the drawing section of topic 2, moved 
the stage coordinates up there
adding some clarity to the kaleidoscope activity
refactor /prog/graphics to /prog/drawing, to better follow structure in
/cur
more refactoring of /prog
merge dan and nate stuff
Merge pull request #27 from xtitter/gh-pages

nate updates -- fixes to topic 2, mergings with dan