title: Display Handlebars.js context in a template
body: <p>Is there a variable passed into every handlebar.js template that contains all the context content that is accessible by the template?</p>
  
  <p>e.g. I'm creating a template, but I don't know all the context content accessible by the template. I want to be able to type into the template <code>{{ debug }}</code> and handlebars.js will spit out all the context content into the HTML</p>