Release of version 1.4.0

Version 1.4.0

.docs/overrides/main.html

@@ -4,6 +4,7 @@
 <label for="version">Version</label>
 <select style="margin-left:8px;" id="version" name="version" onchange="switchVersion(this.options[this.selectedIndex].value)">
     <option value="latest">latest</option>
+    <option value="1.4">1.4</option>
     <option value="1.3">1.3</option>
 </select>
 <script>
@@ -12,7 +13,7 @@
         if (segments.length === 5) {
             return segments[3]
         } else {
-            return '1.3'
+            return '1.4'
         }
     }
     function switchVersion(value) {