Adds userId support for Universal Analytics in GADWP

functions.php

/* Analytics Code */
function gadwp_addcode( $gadwp ) {
	$commands = $gadwp->get(); // Get commands array
	$fields = array();
	$fields['option'] = 'userId';
	$fields['value'] = get_current_user_id();
	if ( $fields['value'] ){
		$command = array( $gadwp->prepare( 'set', $fields ) );
		array_splice( $commands, -1, 0, $command ); //insert the command before send
	}
	$gadwp->set( $commands ); // Store the new commands array
}
add_action( 'gadwp_analytics_commands',  'gadwp_addcode', 10, 1 );