Update bower.json for Polymer elements and add PRESUBMIT.py

third_party/polymer/v1_0/components-chromium/iron-a11y-keys-behavior/.bower.json

 {
   "name": "iron-a11y-keys-behavior",
-  "version": "1.0.2",
+  "version": "1.0.5",
   "description": "A behavior that enables keybindings for greater a11y.",
   "keywords": [
     "web-components",
     "web-component",
     "polymer",
     "a11y",
     "input"
   ],
   "authors": [
     "The Polymer Authors"
   ],
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/PolymerElements/iron-a11y-keys-behavior.git"
+  },
   "main": "iron-a11y-keys-behavior.html",
   "license": "http://polymer.github.io/LICENSE.txt",
   "dependencies": {
     "polymer": "Polymer/polymer#^1.0.0"
   },
   "devDependencies": {
     "paper-styles": "PolymerElements/paper-styles#^1.0.2",
     "iron-component-page": "polymerelements/iron-component-page#^1.0.0",
     "iron-test-helpers": "polymerelements/iron-test-helpers#^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-a11y-keys-behavior",
-  "_release": "1.0.2",
+  "_release": "1.0.5",
   "_resolution": {
     "type": "version",
-    "tag": "v1.0.2",
-    "commit": "f65766278e9943649e70ff8ab01a848ccf068b01"
+    "tag": "v1.0.5",
+    "commit": "cf833eab5c55a26c5aa92e56d3fcb079120ce66a"
   },
   "_source": "git://github.com/PolymerElements/iron-a11y-keys-behavior.git",
-  "_target": "^1.0.0",
+  "_target": "~1.0.0",
   "_originalSource": "PolymerElements/iron-a11y-keys-behavior"
 }