HomeHandler shows the search form and results if a search was performed.

Setup sets up all the handler-specific routing, templates, etc.

Layout represents a cloned version of the responder's Layout template for building the issue finder's "sub-templates".

ResultsTmpl is our search results page's template.

SearchFormAction is the path used in the HTML form for hitting a search page.

Issue wraps schema.Issue to provide presentation-specific information needed for the issue finder tool.