title: Re-Rendering Handlebars partial from backbone view
body: <p>I have a view, which holds handlebars template.
  that template consist of another partial template.
  that partial template holds a list of results, which i am using in different parts of my app.
  anyhow, when trying to filter the results, i'd like to render only that part. meaning the backbone view should not render the whole view just the partial.
  can it be done? </p>