update to polymer js 0.5.1

pkg/polymer/lib/src/build/messages.dart

Index: pkg/polymer/lib/src/build/messages.dart
diff --git a/pkg/polymer/lib/src/build/messages.dart b/pkg/polymer/lib/src/build/messages.dart
index 86335fdcafd88891ec2fe785c47c89933a6b3755..987bccd05dd146b7d6837e68297a2807397d5ba0 100644
--- a/pkg/polymer/lib/src/build/messages.dart
+++ b/pkg/polymer/lib/src/build/messages.dart
@@ -556,20 +556,19 @@ To do this, use the following pattern to update your pubspec.yaml:
 
 If you would like to hide this warning and keep it inlined, do the same thing
 but assign the value to true.
-'''
-);
+''');
 
 const DART_SUPPORT_NO_LONGER_REQUIRED = const MessageTemplate(
     const MessageId('polymer', 43),
     'No need to include "dart_support.js" by hand anymore.',
-    '"dart_support.js" not necessary',
+    '"dart_support.js" injected automatically',
     '''
 The script `packages/web_components/dart_support.js` is still used, but you no
 longer need to put it in your application's entrypoint.
 
 In the past this file served two purposes:
 
-  * to make dart2js work well with the platform polyfills, and
+  * to make dart2js work well with the web_components polyfills, and
   * to support registering Dart APIs for JavaScript custom elements.
 
 Now, the code from `dart_support.js` is split in two halves. The half for
@@ -578,8 +577,7 @@ build`. The `web_components` package provides an HTML file containing the other
 half.  Developers of packages that wrap JavaScript custom elements (like
 `core_elements` and `paper_elements`) will import that file directly, so
 application developers don't have to worry about it anymore.
-'''
-);
+''');
 
 const SCRIPT_INCLUDED_MORE_THAN_ONCE = const MessageTemplate(
     const MessageId('polymer', 44),
@@ -603,3 +601,30 @@ And `foo.html` should look like:
 
     <script type="application/dart" src="foo.dart"></script>
 ''');
+
+const WEB_COMPONENTS_NO_LONGER_REQUIRED = const MessageTemplate(
+    const MessageId('polymer', 45),
+    'No need to include "webcomponents.js" by hand anymore.',
+    '"webcomponents.js" injected automatically',
+    '''
+The script `packages/web_components/webcomponents.js` is still used, but you no
+longer need to put it in your application's entrypoint.
+
+The polyfills provided by this file are no longer required in chrome and will
+automatically be added during `pub build` and `pub serve`.
+''');
+
+const PLATFORM_JS_RENAMED = const MessageTemplate(
+    const MessageId('polymer', 46),
+    '"platform.js" has been renamed to "webcomponents.js".',
+    '"platform.js" renamed to "webcomponents.js".',
+    '''
+The script `packages/web_components/platform.js` has been renamed to
+`packages/web_components/webcomponents.js`. This is automatically fixed in
+`pub serve` and `pub build` but we may remove this functionality in the next
+breaking version of Polymer.
+
+In addition, it is no longer required that you include this file directly, as
+`pub build` and `pub serve` will inject it for you, and its not required when
+running in dartium with a local server.
+''');