use discrete selector for top toolbar to prevent lower-bound leakage …

…under polyfills; modify vulcanization to not include Polymer itself, so we need to rebuild the component less frequently

build.sh

@@ -1,3 +1,3 @@
 #!/bin/bash
 
-vulcanize core-component-page.html -o ../core-component-page/core-component-page.html --Xstrip --inline 
+vulcanize core-component-page.html -o ../core-component-page/core-component-page.html --Xstrip --inline --config vulcanize.json

core-component-page.css

@@ -37,7 +37,7 @@ h2 {
   margin: 4px 0;
 }
 
-core-toolbar {
+.appbar {
   background-color: #E91E63;
   color: white;
 }

core-component-page.html

@@ -21,10 +21,10 @@
 
 <!--
 
-Implements the default home-page for Polymer components.
+Implements the default landing page for Polymer components.
 
-`<core-component-page>` can render a default information page for any component.
-Polymer components use this component in `index.html` to provide a common landing page.
+`<core-component-page>` can render an information page for any component.
+Polymer components use this component in `index.html` to provide the standard landing page.
 
 `<core-component-page>` is _vulcanized_, which means it contains all it's dependencies baked in.
 Therefore, this component is intended to be used only by itself in a page.
@@ -47,7 +47,7 @@
 
     <core-layout flow="v"></core-layout>
 
-    <core-toolbar>
+    <core-toolbar class="appbar">
       <span>{{moduleName}}</span>
       <a class="choiceC" target="_blank" href="../{{moduleName}}/demo.html">demo</a>
     </core-toolbar>

vulcanize.json

@@ -0,0 +1,5 @@
+ {
+   "excludes": {
+     "imports": [ "polymer.html" ]
+   }
+ }