renamed SettingsController to BackendController, renamed the "config"
component to "backendManager" (and the class to BackendManager)
factored out some of the filtering stuff to a VideoFilterForm base class
created FilterActiveForm which wraps all typeahead functionality in a
simple wrapper method
add a filter form to the TV show page too (less functionality than the
movie filter form)
use normalizeResponse (DRY)
handle missing files better (don't throw an exception)
updated the list of features slightly