Upgrade CodeRay to 0.9.2 (#3359).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@3592 e93f8b46-1217-0410-a6f0-8f06a7374b81

vendor/plugins/coderay-0.9.2/lib/coderay/encoders/null.rb

@@ -0,0 +1,26 @@
+module CodeRay
+module Encoders
+
+  # = Null Encoder
+  #
+  # Does nothing and returns an empty string.
+  class Null < Encoder
+
+    include Streamable
+    register_for :null
+
+    # Defined for faster processing
+    def to_proc
+      proc {}
+    end
+
+  protected
+
+    def token(*)
+      # do nothing
+    end
+
+  end
+
+end
+end