update polymer js to 0.4.0

pkg/pkg.status

Index: pkg/pkg.status
diff --git a/pkg/pkg.status b/pkg/pkg.status
index 67e684d8949828f3f9811dd58a85d1d3ca007b92..be1b4537bd9141595082561277cd9e49b33c9c73 100644
--- a/pkg/pkg.status
+++ b/pkg/pkg.status
@@ -23,7 +23,6 @@ polymer/test/build/script_compactor_test: Pass, Slow
 [ $compiler == none && ($runtime == drt || $runtime == dartium || $runtime == ContentShellOnAndroid) ]
 third_party/angular_tests/browser_test/*: Skip # github perf_api.dart issue 5
 third_party/angular_tests/browser_test/core_dom/shadow_root_options: Fail # Issue 19329
-polymer/example/component/news/test/news_index_test: RuntimeError # Issue 18931
 intl/test/date_time_format_http_request_test: Skip # Times out flakily. Issue 19544
 intl/test/date_time_format_local_even_test: Skip # Times out flakily. Issue 19544
 intl/test/date_time_format_local_odd_test: Skip # Times out flakily. Issue 19544
@@ -193,9 +192,11 @@ polymer/test/events_test: Skip #uses dart:html
 polymer/test/instance_attrs_test: Skip #uses dart:html
 polymer/test/js_custom_event_test: Skip #uses dart:html
 polymer/test/js_interop_test: Skip #uses dart:html
+polymer/test/layout_test: Skip #uses dart:html
 polymer/test/mirror_loader_test: Skip # uses dart:html
 polymer/test/nested_binding_test: Skip # uses dart:html
 polymer/test/noscript_test: Skip #uses dart:html
+polymer/test/platform_less_test: Skip #uses dart:html
 polymer/test/prop_attr_bind_reflection_test: Skip #uses dart:html
 polymer/test/prop_attr_reflection_test: Skip #uses dart:html
 polymer/test/property_change_test: Skip # uses dart:html
@@ -204,6 +205,7 @@ polymer/test/publish_attributes_test: Skip #uses dart:html
 polymer/test/publish_inherited_properties_test: Skip #uses dart:html
 polymer/test/register_test: Skip #uses dart:html
 polymer/test/take_attributes_test: Skip #uses dart:html
+polymer/test/template_attr_template_test: Skip #uses dart:html
 polymer/test/template_distribute_dynamic_test: Skip #uses dart:html
 polymer/test/two_way_bind_test: Skip #uses dart:html
 polymer/test/unbind_test: Skip # uses dart:html