new starfield background
fixed stroke in paralax background
added github logos
added octocat
added twitter logo
split ghservice section
added logos

- huboard
- bountysource
- david-dm
- gitter
- nodejitsu
- gemnasium
- docker
added more logos

- codeclimate
- coveralls
- coverity
- saucelabs
- versioneye
- travis-ci
- aws sns
- nma
shrunk davod-dm logo
fixed logo width of 200px
intro and disclaimer improved
talk renamed
agenda updated
added nma section
added AWS SNS section
added twitter example
ghservice and webhooks section
added github intro
suppressing IntelliJ image size check
added octodex to credits