Version 1.3 release.

Updates CHANGELOG, version, docs.
diff --git a/docs/dyn/webmasters_v3.sites.html b/docs/dyn/webmasters_v3.sites.html
new file mode 100644
index 0000000..20192ba
--- /dev/null
+++ b/docs/dyn/webmasters_v3.sites.html
@@ -0,0 +1,143 @@
+<html><body>
+<style>
+
+body, h1, h2, h3, div, span, p, pre, a {
+  margin: 0;
+  padding: 0;
+  border: 0;
+  font-weight: inherit;
+  font-style: inherit;
+  font-size: 100%;
+  font-family: inherit;
+  vertical-align: baseline;
+}
+
+body {
+  font-size: 13px;
+  padding: 1em;
+}
+
+h1 {
+  font-size: 26px;
+  margin-bottom: 1em;
+}
+
+h2 {
+  font-size: 24px;
+  margin-bottom: 1em;
+}
+
+h3 {
+  font-size: 20px;
+  margin-bottom: 1em;
+  margin-top: 1em;
+}
+
+pre, code {
+  line-height: 1.5;
+  font-family: Monaco, 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', 'Lucida Console', monospace;
+}
+
+pre {
+  margin-top: 0.5em;
+}
+
+h1, h2, h3, p {
+  font-family: Arial, sans serif;
+}
+
+h1, h2, h3 {
+  border-bottom: solid #CCC 1px;
+}
+
+.toc_element {
+  margin-top: 0.5em;
+}
+
+.firstline {
+  margin-left: 2 em;
+}
+
+.method  {
+  margin-top: 1em;
+  border: solid 1px #CCC;
+  padding: 1em;
+  background: #EEE;
+}
+
+.details {
+  font-weight: bold;
+  font-size: 14px;
+}
+
+</style>
+
+<h1><a href="webmasters_v3.html">Webmaster Tools API</a> . <a href="webmasters_v3.sites.html">sites</a></h1>
+<h2>Instance Methods</h2>
+<p class="toc_element">
+  <code><a href="#add">add(siteUrl)</a></code></p>
+<p class="firstline">Adds a site to the set of the user's sites in Webmaster Tools.</p>
+<p class="toc_element">
+  <code><a href="#delete">delete(siteUrl)</a></code></p>
+<p class="firstline">Removes a site from the set of the user's Webmaster Tools sites.</p>
+<p class="toc_element">
+  <code><a href="#get">get(siteUrl)</a></code></p>
+<p class="firstline">Retrieves information about specific site.</p>
+<p class="toc_element">
+  <code><a href="#list">list()</a></code></p>
+<p class="firstline">Lists your Webmaster Tools sites.</p>
+<h3>Method Details</h3>
+<div class="method">
+    <code class="details" id="add">add(siteUrl)</code>
+  <pre>Adds a site to the set of the user's sites in Webmaster Tools.
+
+Args:
+  siteUrl: string, The URL of the site to add. (required)
+</pre>
+</div>
+
+<div class="method">
+    <code class="details" id="delete">delete(siteUrl)</code>
+  <pre>Removes a site from the set of the user's Webmaster Tools sites.
+
+Args:
+  siteUrl: string, The site's URL, including protocol, for example 'http://www.example.com/' (required)
+</pre>
+</div>
+
+<div class="method">
+    <code class="details" id="get">get(siteUrl)</code>
+  <pre>Retrieves information about specific site.
+
+Args:
+  siteUrl: string, The site's URL, including protocol, for example 'http://www.example.com/' (required)
+
+Returns:
+  An object of the form:
+
+    { # Access level information for a Webmaster Tools site.
+    "permissionLevel": "A String", # The user's permission level for the site.
+    "siteUrl": "A String", # The URL of the site.
+  }</pre>
+</div>
+
+<div class="method">
+    <code class="details" id="list">list()</code>
+  <pre>Lists your Webmaster Tools sites.
+
+Args:
+
+Returns:
+  An object of the form:
+
+    { # List of sites with access level information.
+    "siteEntry": [ # Access level information for a Webmaster Tools site.
+      { # Access level information for a Webmaster Tools site.
+        "permissionLevel": "A String", # The user's permission level for the site.
+        "siteUrl": "A String", # The URL of the site.
+      },
+    ],
+  }</pre>
+</div>
+
+</body></html>
\ No newline at end of file