Added README doc.

Renamed example/roc_api to demo.
Added contracts

examples/demo/site/www/themes/api/master2/content.tpl

@@ -0,0 +1,11 @@
+
+<div itemscope itemtype="http://schema.org/ItemList">
+  <h2 itemprop="name">Top most recent nodes</h2><br>
+  <meta itemprop="itemListOrder" content="Descending" />
+
+	{foreach from="$nodes" item="item"}
+	<div class="page-header">
+	    <h3><span itemprop="itemListElement"><a href="{$host/}/node/{$item.id/}" rel="node"><strong>{$item.title/}</strong></a></span> <small>{$item.summary/} - {$item.publication_date_output/} </small></h3>
+	</div>
+	{/foreach}
+</div>