pageview modeling example for lecture 12
Add final implementation and distribution plots.

Signed-off-by: Varun Ravishankar <vrdabomb@gmail.com>
Merge branch 'master' of git://github.com/jhofman/css2013

Signed-off-by: Varun Ravishankar <vrdabomb@gmail.com>

Conflicts:
	homework/homework_02/problem_01/wordcount.pig