Steve Losh inspired vspec tests.

See http://learnvimscriptthehardway.stevelosh.com/ to be similarly inspired.
Tweak the folding method for Coffeescript.
Steve Losh's grep-operator plugin and my count-words plugin.

Count-words was inspired by grep-operator. See
http://learnvimscriptthehardway.stevelosh.com/ for more info.