Community-Lab introduction

Artifact 7bd759842f6a5ae9bc43812e2a3b8392c585650c:

• File slides.svg — part of check-in [674ab6c5b8] at 2012-09-22 10:55:24 on branch trunk — Added slides for challenges and requirements. (user: ivan, size: 377545) [annotate] [blame] [check-ins using]