update tests, move test app to v2

test/app/routes/blog/index.html

@@ -1,17 +1,17 @@
-<:Head>
+<svelte:head>
 	<title>Blog</title>
-</:Head>
+</svelte:head>
 
 <h1>Recent posts</h1>
 
 <ul>
-	{{#each posts as post}}
+	{#each posts as post}
 		<!-- we're using the non-standard `rel=prefetch` attribute to
 				tell Sapper to load the data for the page as soon as
 				the user hovers over the link or taps it, instead of
 				waiting for the 'click' event -->
-		<li><a rel='prefetch' href='blog/{{post.slug}}'>{{post.title}}</a></li>
-	{{/each}}
+		<li><a rel='prefetch' href='blog/{post.slug}'>{post.title}</a></li>
+	{/each}
 </ul>
 
 <script>