待废弃方法标记以及版本号更新

src/Admin.php

@@ -35,7 +35,7 @@ class Admin
      *
      * @var string
      */
-    const VERSION = '1.4.0';
+    const VERSION = '1.4.5';
 
     /**
      * @var array
@@ -133,6 +133,7 @@ class Admin
      * @param Closure $callable
      *
      * @return Content
+     * @deprecated
      */
     public static function content(Closure $callable = null)
     {

src/Show/Panel.php

@@ -95,6 +95,7 @@ class Panel implements Renderable
      * @param string $style
      *
      * @return $this
+     * @deprecated
      */
     public function style($style = 'info')
     {