update v1.0.7.9 R.C.

This is a Release Candidate. We are still testing.

vendor/zendframework/zend-escaper/doc/book/index.html

@@ -0,0 +1,10 @@
+<div class="container">
+  <div class="jumbotron">
+    <h1>zend-escaper</h1>
+    
+    <p>Securely and safely escape HTML, HTML attributes, JavaScript, CSS, and URLs.</p>
+
+    <pre><code class="language-bash">$ composer require zendframework/zend-escaper</code></pre>
+  </div>
+</div>
+