update polymer js to 0.4.0

pkg/template_binding/pubspec.yaml

Index: pkg/template_binding/pubspec.yaml
diff --git a/pkg/template_binding/pubspec.yaml b/pkg/template_binding/pubspec.yaml
index 745f8c4270be2148c21769dc12d433f691a16017..b901f497c30e96f2b1b5aac8f37645d06840cf8b 100644
--- a/pkg/template_binding/pubspec.yaml
+++ b/pkg/template_binding/pubspec.yaml
@@ -1,5 +1,5 @@
 name: template_binding
-version: 0.12.1
+version: 0.13.0-dev
 author: Polymer.dart Team <web-ui-dev@dartlang.org>
 description: >
   Extends the capabilities of the HTML Template Element by enabling it to
@@ -7,8 +7,8 @@ description: >
 homepage: https://www.dartlang.org/polymer-dart/
 dependencies:
   observe: ">=0.11.0 <0.13.0"
+  web_components: ">=0.7.0-dev <0.8.0"

[Siggi Cherem (dart-lang), 2014/09/09 21:21:43]

should we revert this? (move back as dev_dependency only?)

[jakemac, 2014/09/10 16:29:59]

This is kind of a weird one, but I think its important to enforce the version
here even though its not directly used. The reason is if you want to use this
package, you need that specific version of platform.js plus the additional
polyfills under src/js from this package.

Technically, they could use an older version and then not include the polyfills
under src/js, but thats really confusing.

 dev_dependencies:
-  web_components: ">=0.3.1 <0.4.0"
   unittest: ">=0.10.0 <0.11.0"
 environment:
   sdk: ">=1.2.0 <2.0.0"