Add custom bbcodes to quick reply

[charlesr]

For reference, I changed the script slightly so it works on all editors except full editors (which already have the codes added by default). e.g.

// for editor_toolbar_filter hook location
if ($this->editor_type != "fe")
$toolbar[] = array('Spoiler Tag','YouTube','Vimeo','Gametrailer','Viddler','Flickr Slideshow','Strikethrough','Hide','Glow');