Allow the user to specify the kind of autodetection the want to use in the WebScreen. Defaults to none.
Merge branch 'refs/heads/version-1.0' into webscreen-data-detectors

* refs/heads/version-1.0:
  Fixed failing test
  Ensuring background image is settable
  Scroll the tableview all the way to the top when there's a search field and the table index begins with "{search}". Fixes #159 on MASTER branch.
  Scroll the tableview all the way to the top when there's a search field and the table index begins with "{search}". Fixes #159
Move detector types into the set_attributes of the webscreen.
Merge pull request #166 from clearsightstudio/webscreen-data-detectors

Webscreen data detectors