Add jquery-dotdotdot

Useful for doing the blog summaries.
Limit the blog summary to 4 lines
Use uglifyjs to compile javascript

Instead of having multiple round trips to the server,
use uglifyjs to compile all of our javascript files
into a single, compact file.

Added a Makefile with target to compile the javascript

You will need uglifyjs v2 installed, which you can
do with:

sudo npm install -g uglify-js

(note the dash in uglify-js, because typing uglifyjs will
give you v1 instead of v2)
Use dotdotdot to make snippets look nicer