Upgrade to Rails 2.0.2

Upgraded to Rails 2.0.2, except that we maintain

   vendor/rails/actionpack/lib/action_controller/routing.rb

from Rail 1.2.6 (at least for now), so that Routes don't change. We still
get to enjoy Rails's many new features.

Also fixed a bug in Chunk-handling: disable WikiWord processing in tags (for real this time).

vendor/rails/actionpack/test/template/erb_util_test.rb

@@ -0,0 +1,56 @@
+require "#{File.dirname(__FILE__)}/../abstract_unit"
+
+class ErbUtilTest < Test::Unit::TestCase
+  include ERB::Util
+  
+  def test_amp
+    assert_equal '&amp;', html_escape('&')
+  end
+  
+  def test_quot
+    assert_equal '&quot;', html_escape('"')
+  end
+
+  def test_lt
+    assert_equal '&lt;', html_escape('<')
+  end
+
+  def test_gt
+    assert_equal '&gt;', html_escape('>')
+  end
+  
+  def test_rest_in_ascii
+    (0..127).to_a.map(&:chr).each do |chr|
+      next if %w(& " < >).include?(chr)
+      assert_equal chr, html_escape(chr)
+    end
+  end
+end
+require "#{File.dirname(__FILE__)}/../abstract_unit"
+
+class ErbUtilTest < Test::Unit::TestCase
+  include ERB::Util
+  
+  def test_amp
+    assert_equal '&amp;', html_escape('&')
+  end
+  
+  def test_quot
+    assert_equal '&quot;', html_escape('"')
+  end
+
+  def test_lt
+    assert_equal '&lt;', html_escape('<')
+  end
+
+  def test_gt
+    assert_equal '&gt;', html_escape('>')
+  end
+  
+  def test_rest_in_ascii
+    (0..127).to_a.map(&:chr).each do |chr|
+      next if %w(& " < >).include?(chr)
+      assert_equal chr, html_escape(chr)
+    end
+  end
+end