Version 1.3 release.

Updates CHANGELOG, version, docs.
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+<style>
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+  border: 0;
+  font-weight: inherit;
+  font-style: inherit;
+  font-size: 100%;
+  font-family: inherit;
+  vertical-align: baseline;
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+body {
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+  padding: 1em;
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+  line-height: 1.5;
+  font-family: Monaco, 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', 'Lucida Console', monospace;
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+  border-bottom: solid #CCC 1px;
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+.toc_element {
+  margin-top: 0.5em;
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+.firstline {
+  margin-left: 2 em;
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+.method  {
+  margin-top: 1em;
+  border: solid 1px #CCC;
+  padding: 1em;
+  background: #EEE;
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+.details {
+  font-weight: bold;
+  font-size: 14px;
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+</style>
+
+<h1><a href="webmasters_v3.html">Webmaster Tools API</a></h1>
+<h2>Instance Methods</h2>
+<p class="toc_element">
+  <code><a href="webmasters_v3.sitemaps.html">sitemaps()</a></code>
+</p>
+<p class="firstline">Returns the sitemaps Resource.</p>
+
+<p class="toc_element">
+  <code><a href="webmasters_v3.sites.html">sites()</a></code>
+</p>
+<p class="firstline">Returns the sites Resource.</p>
+
+<p class="toc_element">
+  <code><a href="webmasters_v3.urlcrawlerrorscounts.html">urlcrawlerrorscounts()</a></code>
+</p>
+<p class="firstline">Returns the urlcrawlerrorscounts Resource.</p>
+
+<p class="toc_element">
+  <code><a href="webmasters_v3.urlcrawlerrorssamples.html">urlcrawlerrorssamples()</a></code>
+</p>
+<p class="firstline">Returns the urlcrawlerrorssamples Resource.</p>
+
+</body></html>
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