v0.3.0

• [app] update example.coffee to use res instead of msg #36
• [script] update generator to work better out of the box
  • Update dependencies
    • Add missing grunt and grunt-cli packages
    • Re-add chai and sinon to be npm 3.x compliant
    • Lock coffee-script to the same as hubot
  • Update travis config
    • Use new container architecture
    • Cache node_modules (faster test runs)
    • Switch from node 0.11 to 0.12 for testing
    • Add iojs to test matrix
  • Update Gruntfile
    • Add src directory to watch list
    • Load additional grunt tasks in consistent manor
    • Remove superfluous watch log message