Add reload button to specs window

static/jasmine.less

@@ -19,6 +19,17 @@ body {
     list-style: none;
   }
 
+  .reload-button {
+    color: #333;
+    background-color: #fff;
+    border: 1px solid #ccc;
+
+    &:hover {
+      background-color: #ddd;
+      color: #222;
+    }
+  }
+
   .symbol-header {
     font-size: 18px;
     font-weight: bold;