removed class variable

Gemfile.lock

@@ -7,7 +7,7 @@ GIT
 PATH
   remote: .
   specs:
-    compass (0.11.beta.4.27735a9)
+    compass (0.11.beta.4.a2200b1)
       chunky_png (~> 1.1.0)
       sass (>= 3.1.0.alpha.249)
 

lib/compass/sass_extensions/sprites/sprites.rb

@@ -1,27 +1,25 @@
 module Compass
   class Sprites < Sass::Importers::Base
     attr_accessor :name, :path
-    @@maps = {}
+    @maps = {}
-    class << self
     
-      def path_and_name(uri)
+    def self.path_and_name(uri)
       if uri =~ %r{((.+/)?(.+))/(.+?)\.png}
         [$1, $3, $4]
       end
     end
 
-      def discover_sprites(uri)
+    def self.discover_sprites(uri)
       self.load_map(uri, options).files
     end
 
-      def sprite_name(file)
+    def self.sprite_name(file)
       File.basename(file, '.png')
     end
-    end
   
     def self.load_map(uri, options)
       key = self.key(uri, options)
-      @@maps[key] ||= SpriteMap.new(uri, options)
+      @maps[key] ||= SpriteMap.new(uri, options)
     end