"cat" slide: delay showing content
add emphasis to Browserification: Build Script slide
add emphasis to browserification problem slide
use npm install --save-dev to install browserify
add some context to the Make Variables slide
keep jshint in the PHONY list
add a Make Dependency Tree slide
add emphasis to Make marker file slide
fix syntax error on Rake intro slide
add emphasis to Rake file task slide
use dependency tree format for Rake extra credit slide
install guard-shell alongside guard