#978714 by juhaniemi: Renamed the imagecache_apply_preset function to adhere to namespace conventions.

Took the sprite generation out of the page creation process.  It will now be generated via a callback like imagecache works.

Tasks #797322 by d.clarke: Working version of the module with image formatter, imagecache formatter, sprite theme call, and register_sprite api call... added the sprite.pages.inc file

[issue category] #[issue number] by [comma-separated usernames]: Working version of the module with image formatter, imagecache formatter, sprite theme call, and register_sprite api call.

  * Create theme function (aaron).
  * Create sprite registry (aaron).
  * Create install file (aaron).
  * Create initial module (aaron).
  * Create info file (aaron).
  * Create README.txt file (aaron).