Thanks for the great plugin and update. It works nicely with my localhost WP, but I'd like to report to you that the problem somehow remains in my live WP3 (mu enabled). The error as:
Parse error: syntax error, unexpected T_STRING,
expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}'
in /wp-content/plugins/twitter-blackbird-pie/unicode.php on line 8
Fatal error: Call to undefined function: encodeunsafe()
in /wp-includes/compat.php on line 136
and it turns out the "line 136 of compat.php" is still json relevant I guess:
return $wp_json->encodeUnsafe( $string );
My live WP runs some plugins and some maybe uncommon for you. I don't know coding at all, so please let me know if you need more information to figure it out and I'd love to help.