Fixed missing iron-a11y-announce.

Changes:
- fixed elements' versions
- all static files copied in gulp task 'js' (in case another element is added)

bower.json

@@ -24,13 +24,13 @@
     "foundation-datepicker": "~1.3.0",
     "angular-loading-bar": "~0.8.0",
     "raven-js": "~1.3.0",
-    "iron-ajax": "PolymerElements/iron-ajax#~1.1.1",
-    "paper-input": "PolymerElements/paper-input#~1.1.4",
-    "paper-item": "PolymerElements/paper-item#~1.1.3",
-    "paper-menu": "PolymerElements/paper-menu#~1.2.2",
-    "polymer": "Polymer/polymer#~1.2.0",
-    "iron-flex-layout": "PolymerElements/iron-flex-layout#~1.2.2",
-    "iron-form": "PolymerElements/iron-form#~1.0.13",
+    "iron-ajax": "PolymerElements/iron-ajax#1.1.x",
+    "paper-input": "PolymerElements/paper-input#1.1.x",
+    "paper-item": "PolymerElements/paper-item#1.1.x",
+    "paper-menu": "PolymerElements/paper-menu#1.2.x",
+    "polymer": "Polymer/polymer#1.2.x",
+    "iron-flex-layout": "PolymerElements/iron-flex-layout#1.2.x",
+    "iron-form": "PolymerElements/iron-form#1.0.x",
     "chartist": "~0.9.5"
   },
   "devDependencies": {

gulpfile.js

@@ -83,28 +83,7 @@ gulp.task('js', function(){
 
 
     gulp.src([
-        "./bower_components/font-roboto/**/*",
-        "./bower_components/iron-a11y-keys/**/*",
-        "./bower_components/iron-a11y-keys-behavior/**/*",
-        "./bower_components/iron-ajax/**/*",
-        "./bower_components/iron-autogrow-textarea/**/*",
-        "./bower_components/iron-behaviors/**/*",
-        "./bower_components/iron-collapse/**/*",
-        "./bower_components/iron-flex-layout/**/*",
-        "./bower_components/iron-form/**/*",
-        "./bower_components/iron-form-element-behavior/**/*",
-        "./bower_components/iron-input/**/*",
-        "./bower_components/iron-menu-behavior/**/*",
-        "./bower_components/iron-meta/**/*",
-        "./bower_components/iron-selector/**/*",
-        "./bower_components/iron-validatable-behavior/**/*",
-        "./bower_components/paper-input/**/*",
-        "./bower_components/paper-item/**/*",
-        "./bower_components/paper-menu/**/*",
-        "./bower_components/paper-styles/**/*",
-        "./bower_components/polymer/**/*",
-        "./bower_components/promise-polyfill/**/*",
-        "./bower_components/webcomponentsjs/**/*",
+        "./bower_components/**/*"
     ], {base:"."})
         .pipe(gulp.dest("src/ralph/admin/static/"));
 });