TeX and CSS tweaks.

Sync with latest Instiki Trunk
(Updates Rails to 1.2.2)

vendor/rails/activesupport/lib/active_support/core_ext/time/conversions.rb

@@ -13,8 +13,7 @@ module ActiveSupport #:nodoc:
           :rfc822 => "%a, %d %b %Y %H:%M:%S %z"
         }
 
-        def self.append_features(klass)
-          super
+        def self.included(klass)
           klass.send(:alias_method, :to_default_s, :to_s)
           klass.send(:alias_method, :to_s, :to_formatted_s)
         end