Change order of hooks loading

Let override hooks via environment-specific config.
diff --git a/system/core/Hooks.php b/system/core/Hooks.php
index 57e4a99..4ec7698 100644
--- a/system/core/Hooks.php
+++ b/system/core/Hooks.php
@@ -99,16 +99,16 @@
 		}
 
 		// Grab the "hooks" definition file.
-		if (file_exists(APPPATH.'config/'.ENVIRONMENT.'/hooks.php'))
-		{
-			include(APPPATH.'config/'.ENVIRONMENT.'/hooks.php');
-		}
-
 		if (file_exists(APPPATH.'config/hooks.php'))
 		{
 			include(APPPATH.'config/hooks.php');
 		}
 
+		if (file_exists(APPPATH.'config/'.ENVIRONMENT.'/hooks.php'))
+		{
+			include(APPPATH.'config/'.ENVIRONMENT.'/hooks.php');
+		}
+
 		// If there are no hooks, we're done.
 		if ( ! isset($hook) OR ! is_array($hook))
 		{