Move the Wordpress Content Folder
This new, more easily accessible wp-content folder will be used instead of the one in the WordPress directory. This will mean you will lose access to the default themes. You can either manually move them to the new content directory or you can register the original wp-content folder using register_theme_directory().
define( 'WP_CONTENT_DIR', dirname( __FILE__ ) . 'path/to/wp-content' );
define( 'WP_CONTENT_URL', 'http://' . $_SERVER['HTTP_HOST'] . '/path/to/wp-content' );