working on diagrams
styled commits
Fix a few it's => its
Update "Deploy on EC2 or your own server"
typos and corrections
fixed annotations
fixed conflicts
removed annotator
pulling from heroku (?)
added author photos
styling author portaits
renamed book to chapters
changing permalink paths
fixing note padding
adding comments sidebar
tweaking css for comments sidebar
adding comment count
use disqus identifier for comment counts
comment form is now in the sidebar, change text
temporary fix for spin