ITC-286 ticket resolution. Added change in comments.php in order to
have feedback for user when comments are closed.
ITC-502. Implementation of Atom feed icon to side of archive page header. Linked feed is specific to category.
Deleted content:"" becase it added an extra line above the li which offset the bullets
Fixes ITC-478
On dev sites, the wp_cache_clear_cache may not be there because wp super cache isn't enabled. This gets the options to show.
Always display the errors messages.
Merge remote-tracking branch 'origin/ITC509'