Simpler Handlebars demo sample

Have a request for a new sample?
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**Sample name or URL where you found the bug**
Simple Templating

**Sample data pasted or attached as JSON (not an image)**

The current Handlebars sample attempts to do multiple demonstrations of different concepts in firebase. These elements require different dependencies and makes it unclear what is the minimum needed to deliver a basic templated page.

**Suggestion**
Creare a simple use case for showing how to server a simple templated page via Firebase using something like a passed in JSON object ( if this is possible) This will make it much clearer if this is a achievable and what elements are needed to just make this work.