Displays link to the RSS or Atom feed for comments on this item.

If there are no any comments in the item then it displays nothing.

== Example ==

$Item->feedback_feed_link( $skin = '_rss2', $before = '', $after = '', $title='#' );

== Parameters ==

* Name: skin
* Default: ‘_rss2′
* Usage: Type of the skin. It can be ‘_rss2′ or ‘_atom’.
* Name: before
* Default: (no space)
* Usage: String to display before the link.
* Name: after
* Default: (no space)
* Usage: String to display after the link.
* Name: title
* Default: ‘#’
* Usage: String title, ‘#’ for default. If ‘title’ is not ‘#’ then title text will be displayed instead regular feed link.

== Return value ==
This function return false, if feedbacks are disabled.
If feedbacks are enabled then this function return true and displays content.