Changes
- Added: Improve display of shortcode parameters bobbingwide/oik-shortcodes#3
- Changed: Better support for &#nn; characters and HTML inside strings bobbingwide/oik-shortcodes#4
- Changed: Cater for &#nn; and HTML tags in PHP comments bobbingwide/oik-shortcodes#4
- Fixed: Compatibility with WordPres SEO bobbingwide/oik-shortcodes#1
- Fixed: Notice undefined $post_id in oikai_apiref()
