Integrated ACF Plugin

Hi from Germany,

love the idea of your plugin. Hovewer, there is one slight disadvantage. It is possible and legally allowed to integrate the ACF plugin into your own plugin or theme. I do that for example in a plugin where I gather all site specific settings in one place. Your plugin uses the following code:

!is_plugin_active( 'advanced-custom-fields/acf.php' ) AND !is_plugin_active( 'advanced-custom-fields-pro/acf.php' ))

which is obviously not working for me, since ACF is not installed as a plugin. Here’s my two cents: Better check if the ACF class is present instaed of looking for the plugin:

if( ! class_exists('acf') )

Just an idea, maybe you could consider incorporate that in a future version.