Roll Polymer to 1.3.1

third_party/polymer/v1_0/components-chromium/paper-tabs/.bower.json

Index: third_party/polymer/v1_0/components-chromium/paper-tabs/.bower.json
diff --git a/third_party/polymer/v1_0/components-chromium/paper-tabs/.bower.json b/third_party/polymer/v1_0/components-chromium/paper-tabs/.bower.json
index f204edad2d440b301fa72067ba2cc1e7d41468d2..4632aa74468459488d40c7d1ab833559b50dba18 100644
--- a/third_party/polymer/v1_0/components-chromium/paper-tabs/.bower.json
+++ b/third_party/polymer/v1_0/components-chromium/paper-tabs/.bower.json
@@ -1,6 +1,6 @@
 {
   "name": "paper-tabs",
-  "version": "1.3.3",
+  "version": "1.3.7",
   "license": "http://polymer.github.io/LICENSE.txt",
   "description": "Material design tabs",
   "private": true,
@@ -23,7 +23,7 @@
     "iron-flex-layout": "PolymerElements/iron-flex-layout#^1.0.0",
     "iron-icon": "PolymerElements/iron-icon#^1.0.0",
     "iron-iconset-svg": "PolymerElements/iron-iconset-svg#^1.0.0",
-    "iron-menu-behavior": "PolymerElements/iron-menu-behavior#^1.0.0",
+    "iron-menu-behavior": "PolymerElements/iron-menu-behavior#^1.1.0",
     "iron-resizable-behavior": "PolymerElements/iron-resizable-behavior#^1.0.0",
     "paper-behaviors": "PolymerElements/paper-behaviors#^1.0.0",
     "paper-icon-button": "PolymerElements/paper-icon-button#^1.0.0",
@@ -42,11 +42,11 @@
   },
   "ignore": [],
   "homepage": "https://github.com/PolymerElements/paper-tabs",
-  "_release": "1.3.3",
+  "_release": "1.3.7",
   "_resolution": {
     "type": "version",
-    "tag": "v1.3.3",
-    "commit": "4c53ca15663b6f4b13b20a8aab6af8dea5bfc369"
+    "tag": "v1.3.7",
+    "commit": "b8d689c7cdf926a69c91d2421aa6c2536608fad4"
   },
   "_source": "git://github.com/PolymerElements/paper-tabs.git",
   "_target": "^1.0.0",