Don't make design_doc_slug_cache and design_doc_fresh inheritable, because these settings should be specific to the class

lib/couchrest/mixins/views.rb

@@ -7,6 +7,7 @@ module CouchRest
       end
       
       module ClassMethods
+        attr_accessor :design_doc_slug_cache, :design_doc_fresh
         
         # Define a CouchDB view. The name of the view will be the concatenation
         # of <tt>by</tt> and the keys joined by <tt>_and_</tt>