TeX and CSS tweaks.

Sync with latest Instiki Trunk
(Updates Rails to 1.2.2)

vendor/rails/actionpack/test/testing_sandbox.rb

@@ -1,26 +1,11 @@
 module TestingSandbox
-
-  # This whole thing *could* be much simpler, but I don't think Tempfile,
-  # popen and others exist on all platforms (like Windows).
-  def execute_in_sandbox(code)
-    test_name = "#{File.dirname(__FILE__)}/test.#{$$}.rb"
-    res_name = "#{File.dirname(__FILE__)}/test.#{$$}.out"
-
-    File.open(test_name, "w+") do |file|
-      file.write(<<-CODE)
-        $:.unshift "../lib"
-        block = Proc.new do
-          #{code}
-        end
-        print block.call
-      CODE
+  # Temporarily replaces KCODE for the block
+  def with_kcode(kcode)
+    old_kcode, $KCODE = $KCODE, kcode
+    begin
+      yield
+    ensure
+      $KCODE = old_kcode
     end
-
-    system("ruby #{test_name} > #{res_name}") or raise "could not run test in sandbox"
-    File.read(res_name)
-  ensure
-    File.delete(test_name) rescue nil
-    File.delete(res_name) rescue nil
   end
-
 end