Document more playbook features in 0.7, docs build

modules.html

@@ -853,6 +853,8 @@ the basename of the file on the remote server will be used.</td>
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 <span id="id14"></span><h2>mount<a class="headerlink" href="#mount" title="Permalink to this headline">¶</a></h2>
+<p class="versionadded">
+<span class="versionmodified">New in version 0.6.</span></p>
 <p>The mount module controls active and configured mount points (fstab).</p>
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