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/activeresource/test/base_errors_test.rb

@@ -0,0 +1,48 @@
+require "#{File.dirname(__FILE__)}/abstract_unit"
+require "fixtures/person"
+
+class BaseErrorsTest < Test::Unit::TestCase
+  def setup
+    ActiveResource::HttpMock.respond_to do |mock|
+      mock.post "/people.xml", {}, "<?xml version=\"1.0\" encoding=\"UTF-8\"?><errors><error>Age can't be blank</error><error>Name can't be blank</error><error>Name must start with a letter</error><error>Person quota full for today.</error></errors>", 422
+    end
+    @person = Person.new(:name => '', :age => '')
+    assert_equal @person.save, false
+  end
+
+  def test_should_mark_as_invalid
+    assert !@person.valid?
+  end
+
+  def test_should_parse_xml_errors
+    assert_kind_of ActiveResource::Errors, @person.errors
+    assert_equal 4, @person.errors.size
+  end
+
+  def test_should_parse_errors_to_individual_attributes
+    assert @person.errors.invalid?(:name)    
+    assert_equal "can't be blank", @person.errors.on(:age)
+    assert_equal ["can't be blank", "must start with a letter"], @person.errors[:name]
+    assert_equal "Person quota full for today.", @person.errors.on_base
+  end
+
+  def test_should_iterate_over_errors
+    errors = []
+    @person.errors.each { |attribute, message| errors << [attribute, message] }
+    assert errors.include?(["name", "can't be blank"])
+  end
+
+  def test_should_iterate_over_full_errors
+    errors = []
+    @person.errors.each_full { |message| errors << message }
+    assert errors.include?("Name can't be blank")
+  end
+
+  def test_should_format_full_errors
+    full = @person.errors.full_messages
+    assert full.include?("Age can't be blank")
+    assert full.include?("Name can't be blank")
+    assert full.include?("Name must start with a letter")
+    assert full.include?("Person quota full for today.")
+  end
+end