[third_party] add polymer 1.2.3

polymer_1.2.3/bower_components/iron-range-behavior/.bower.json

 {
   "name": "iron-range-behavior",
-  "version": "1.0.1",
+  "version": "1.0.4",
   "license": "http://polymer.github.io/LICENSE.txt",
   "description": "Provides a behavior for something with a minimum and maximum value",
   "authors": "The Polymer Authors",
   "keywords": [
     "web-components",
     "polymer",
     "behavior"
   ],
   "main": [
     "iron-range-behavior.html"
   ],
   "private": true,
   "repository": {
     "type": "git",
     "url": "git://github.com/PolymerElements/iron-range-behavior.git"
   },
   "dependencies": {
     "polymer": "Polymer/polymer#^1.0.0"
   },
   "devDependencies": {
     "iron-component-page": "PolymerElements/iron-component-page#^1.0.0",
     "iron-input": "PolymerElements/iron-input#^1.0.0",
     "test-fixture": "PolymerElements/test-fixture#^1.0.0",
     "web-component-tester": "*",
     "webcomponentsjs": "webcomponents/webcomponentsjs#^0.7.0"
   },
   "homepage": "https://github.com/PolymerElements/iron-range-behavior",
-  "_release": "1.0.1",
+  "_release": "1.0.4",
   "_resolution": {
     "type": "version",
-    "tag": "v1.0.1",
-    "commit": "80aa8588f3b8527b96f3206655b29e23970fb7a3"
+    "tag": "v1.0.4",
+    "commit": "71774a7d8a8c377496bfe05e60b754e91216e0b9"
   },
   "_source": "git://github.com/PolymerElements/iron-range-behavior.git",
   "_target": "^1.0.0",
   "_originalSource": "PolymerElements/iron-range-behavior"
 }