chore(pub): upgrade observe dependency

harryterkelsen · Harry Terkelsen · commit bffab0f2db98 · 2015-10-08T06:35:38.000Z
Closes angular#4594
diff --git a/pubspec.yaml b/pubspec.yaml
@@ -2,7 +2,7 @@ name: angular
 environment:
   sdk: '>=1.12.0-dev.5.10 <2.0.0'
 dependencies:
-  observe: '0.13.1'
+  observe: '^0.13.1'
 dev_dependencies:
   guinness: '^0.1.17'
   intl: '^0.12.4'
