[1.7.0] Factor out caching of definitions to DefinitionCache, hook in CSS, add a bunch of todos for this functionality. Attr namespace no longer affects HTMLDefinition.

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1093 48356398-32a2-884e-a903-53898d9a118a

library/HTMLPurifier/Definition.php

@@ -12,6 +12,11 @@ class HTMLPurifier_Definition
      */
     var $setup = false;
     
+    /**
+     * What type of definition is it?
+     */
+    var $type;
+    
     /**
      * Sets up the definition object into the final form, something
      * not done by the constructor