Sampling interface
==================

Files in this directory should be _classes_ implementing the following
interface:

 - `self.works_with?(Game) => Boolean`

   Returns whether or not this sampling method works with the
   specified game.

 - `self.can_get?(String setting_name) => Fixnum`

   Returns whether or not this sampling method can get a specifed
   statistic; 0 means 'false', positive integers mean 'true', where
   higher numbers are higher priority.

 - `self.uses_remote?() => Boolean`

   Return whether or not this sampling method requires remote IDs for
   users.

 - `self.set_remote_name(User, Game, String)`

   Set the remote ID for a user for the specified game.  It is safe to
   assume that this sampling method `works_with?` that game.

 - `self.get_remote_name(Object)`

   When given an object from `RemoteUsername#value`, give back a
   human-readable/editable name to display

----

 - `initialize(Match)`

   Construct new Sampling object for the specified match.

 - `start()`

   Begin fetching the statistics.

 - `render_user_interaction(User) => String`

   Returns HTML to render on a page.

 - `handle_user_interaction(User, Hash params)`

   Handles params from the form generated by
   `#user_interaction_render`.