updated bad image height
Merge remote-tracking branch 'upstream/gh-pages' into hackathon-intro-slides
Merge pull request #97 from rhyolight/hackathon-intro-slides

Hackathon intro slides
Adding jeff's hackathon whiteboard images.
Merge pull request #98 from rhyolight/hackathon-intro-slides

Adding jeff's hackathon whiteboard images.
ADding a mssages page for hackathon
Merge branch 'gh-pages' of github.com:numenta/nupic into gh-pages
updated messages
Added countdown js lib for hackathon
Added countdown to messages page