Meta title and meta description not updated when working with subdomains

[conejoninja]

When you choose subdomains as regions, the meta title and description still display the main home page meta tags. Not SEO friendly at all.

Original issue : osclass/Osclass#890

Proposed solution :

    <?php if(Params::getParam('subdomain')==1) { ?>
        <title><?php echo osc_user_name(); ?> - <?php osc_subdomain_host(); ?></title>
        <meta name="title" content="Toko online - <?php echo osc_user_name(); ?> - <?php osc_subdomain_host(); ?>" />
        <meta name="description" content="<?php echo osc_user_info(); ?>"/>

    <?php } else if (Params::getParam('page')=='item') { ?>
        <title><?php echo osc_item_title(); ?> </title>
        <meta name="title" content="<?php echo osc_item_title(); ?>" />
        <meta name="description" content="<?php echo osc_item_city().' - '.osc_item_category().' - '.osc_item_title();?>"/>

    <?php } else { ?>
        <title><?php echo meta_title() ; ?></title>
        <meta name="title" content="<?php echo osc_esc_html(meta_title()); ?>" />
        <?php if( meta_description() != '' ) { ?>
            <meta name="description" content="<?php echo osc_esc_html(meta_description()); ?>" />
        <?php } ?>

    <?php } ?>