merge to trunk all changes from 36817 until 37378 under the packages: polymer,

pkg/polymer/CHANGELOG.md

Index: pkg/polymer/CHANGELOG.md
===================================================================
--- pkg/polymer/CHANGELOG.md	(revision 37373)
+++ pkg/polymer/CHANGELOG.md	(working copy)
@@ -4,6 +4,16 @@
 package. We will also note important changes to the polyfill packages (observe,
 web_components, and template_binding) if they impact polymer.
 
+#### Pub version 0.11.0-dev
+  * Event bindings with `@` are no longer supported.
+
+#### Pub version 0.10.1
+  * Reduce the analyzer work by mocking a small subset of the core libraries.
+
+#### Pub version 0.10.0+1
+  * Better error message on failures in pub-serve/pub-build when pubspec.yaml
+    is missing or has a wrong configuration for the polymer transformers.
+
 #### Pub version 0.10.0
   * Interop with polymer-js elements now works.
   * Polymer polyfills are now consolidated in package:web_components, which is