Use home_url instead of site_url

Hi,

I noticed that my ‘View all results’ link was broken, as my site’s address is different to the WordPress installation directory. Fixed by changing:

'permalink' => add_query_arg( array( 's' => $s ), home_url() ),

to

'permalink' => add_query_arg( array( 's' => $s ), site_url() ),

in iss-ajax.php.

Just letting you know in case you’re still making updates!