Added space between bullet point items using larger margin-top of 1.6em
Minor content update for Jax London 2013 Light Table presentation
changed first slide to show twitter account rather than email address
Increasing theme font to make more readible; fixed roll over links text being truncated by adding overflow visible and padding around text
New presentation: Heroku High Level - a very brief introduction to Heroku without any technical talk
restructured the slides overview page, seperating slides into categories; added link to Heroku high level presentation