Add change log for 1.8.4

docs/install.html

@@ -40,6 +40,14 @@ <h3>Version history: </h3>
   <li>1.8.3: 30-November-2014. Force SCAYT to use the language that it's specified as the language for the contents.<br>
 			<a href="https://github.com/AlfonsoML/confighelper/pull/13">Listen to the contentDom event to avoid problems when calling setData in WYSIWYG mode</a>. Thanks to noam-si.
 	</li>
+  <li>1.8.4: 25-November-2018:
+	<a href="https://github.com/AlfonsoML/confighelper/pull/16">Catch errors from localStorage</a> Thanks to <a href="https://github.com/nikgt">nikgt</a><br>
+	Fix UTF-8 issue<br>
+	Fix missing assigment with tableProperties dialog<br>
+	Add license file<br>
+	<a href="https://github.com/AlfonsoML/confighelper/pull/23">Prevent editing the placeholder text if startupFocus is true</a>. Thanks to <a href="https://github.com/albincepa">Albince Paliakkara</a><br>
+	<a href="https://github.com/AlfonsoML/confighelper/pull/24">Prevent leaking editor instances on destroy</a>. Thanks to <a href="https://github.com/bendemboski">Ben Demboski </a>
+	</li>
 </ol>
 
 <h2>Installation</h2>