WPCOM-Legacy-Redirector

• Cleanup of PHP Notices
• Addition of wpcom_legacy_redirector_preserve_query_params filter to allow for the whitelisting of params that should be passed through unmodified to the redirected url.

Usage:

add_filter( 'wpcom_legacy_redirector_preserve_query_params', function( $preserved_params ){
    array_push( $preserved_params,
        'utm_source',
        'utm_medium',
        'utm_campaign'
    );
    return $preserved_params;
} );

props jigneshnakrani088, mdbitz

• Composer support
• Introduced wpcom_legacy_redirector_redirect_status filter for redirect status code (props spacedmonkey)
• Reset cache when a redirect post does not exist
• Introduce the wpcom_legacy_redirector_allow_insert filter to enable inserts outside of WP CLI
• Fix for WP-CLI check

props spacedmonkey, bswatson