Web: Extract base template.

Change-Id: I20a4fbb04aa75a94f96617b0c4d1be00ab3e4aca
diff --git a/src/main/resources/templates/benki/wiki/wikiPage.html b/src/main/resources/templates/benki/wiki/wikiPage.html
index 865d3ba..7caf94d 100644
--- a/src/main/resources/templates/benki/wiki/wikiPage.html
+++ b/src/main/resources/templates/benki/wiki/wikiPage.html
@@ -1,28 +1,22 @@
-<!DOCTYPE html>
-<html>
-<head>
-  <meta charset="UTF-8">
+{@eu.mulk.mulkcms2.benki.wiki.WikiPageRevision page}
 
-  <title>{title} &#8212; Benki Wiki</title>
+{#include base.html}
+{#title}{page.title} &#8212; Benki Wiki{/title}
+{#body}
+<article id="wiki-page">
+  <header>
+    <h1>{page.title}</h1>
+  </header>
 
-  <link rel="stylesheet" type="text/css" href="/common.css" />
-</head>
+  <main>
+    {#with page}{content.raw}{/}
+  </main>
 
-<body>
-  <article id="wiki-page">
-    <header>
-      <h1>{title}</h1>
-    </header>
+  <hr>
 
-    <main>
-      {content.raw}
-    </main>
-
-    <hr>
-
-    <footer>
-      <a href="/wiki/{title}/revisions">Page revisions</a>
-    </footer>
-  </article>
-</body>
-</html>
+  <footer>
+    <a href="/wiki/{page.title}/revisions">Page revisions</a>
+  </footer>
+</article>
+{/body}
+{/include}