added front page samples to testing, plus a couple of tweaks to front page and code lab

src/site/codelabs/darrrt/index.markdown

 ---
 layout: default
-title: "Try Dart"
+title: "Write Dart"
 description: "Write some Dart code. Learn some stuff."
 snippet_img: images/piratemap.jpg
 has-permalinks: true
 tutorial:
   id: trydart
 js:
 - url: /js/os-switcher.js
   defer: true
 - url: /js/editor-downloads-analytics.js
   defer: true
 - url: /js/editor-version.js
   defer: true
 header:
   css: ["/codelabs/darrrt/darrrt.css"]
 ---
 
 # {{ page.title }}
 
-## Got an hour? Write a Dart app.
+## Got about an hour? Write a Dart app.

[Kathy Walrath, 2013/11/23 00:51:54]

As we discussed, delete this line entirely.

 
 In this code lab,
 you build a pirate badge generator from a skeleton app.
 The sample app provides a brief look at some Dart language and library features.
 This code lab assumes that you have some programming experience.
 
 <strong>Build this app!</strong>
 
 <iframe class="running-app-frame"
         style="height:220px;width:530px;"
         src="examples/6-piratebadge_json/piratebadge.html">
 </iframe>
 
 <hr>
 
 <div class="piratemap" markdown="1" style="min-height:325px">

[Kathy Walrath, 2013/11/23 00:51:54]

I've asked the artist to remove "Try" from the map.

 
 ## Map
 
 * [Step 0: Set up](#set-up)
 * [Step 1: Run the skeleton app](#step-one)
 * [Step 2: Add an input field](#step-two)
 * [Step 3: Add a button](#step-three)
 * [Step 4: Create a class](#step-four)
 * [Step 5: Save to local storage](#step-five)
 * [Step 6: Read names from JSON file using HttpRequest](#step-six)
@@ skipping 1772 matching lines @@
 on our [Samples page](/samples/).
 </div>
 
 ### <i class="icon-anchor"> </i> Read the tutorials.
 
 <div class="trydart-step-details" markdown="1">
 Learn more about Dart from
 the [Dart tutorials](/docs/tutorials/).
 </div>