day3 exercices
Merge branch 'master' of https://github.com/vorg/ciid-simulations-and-artificial-behaviours-2014

Conflicts:
	day4/00_signals_bitcoin.html
	day4/00_signals_email.html
	day4/00_signals_glucose.html
	day4/00_signals_weather.html
	day4/js/paper-agents.js
	day4/js/paper-error.js
	day4/js/paper-timeline.js
	day4/js/paper.js
	day4/js/signals-data.js
	day4/js/signals.js