Merge pull request #154 from nmfzone/patch-1

Fix adding of class on Select plugin / extension.

Author: yajra

src/Html/Options/Plugins/Select.php

@@ -60,17 +60,16 @@ public function selectClassName($value = 'selected')
      * @param string $class
      * @return $this
      */
-    public function addClass($class)
+    public function selectAddClassName($class)
     {
-        if (! isset($this->attributes['className'])) {
-            $this->attributes['className'] = $class;
+        if (! isset($this->attributes['select']['className'])) {
+            $this->attributes['select']['className'] = $class;
         } else {
-            $this->attributes['className'] .= " $class";
+            $this->attributes['select']['className'] .= " $class";
         }
         return $this;
     }
 
-
     /**
      * Set select info option value.
      *