$core_updated = $this->core_update_check($message); // check the WP core for updates

protected function core_update_check(&$message) {

PHP Fatal error: Using $this when not in object context in /******/wp-updates-notifier/wp-updates-notifier.php on line 175

$core_updated = $this->core_update_check($message); // check the WP core for updates

public function do_update_check() {
			$options = get_option(self::$options_field); // get settings
			$message = ""; // start with a blank message
			$core_updated = $this->core_update_check($message); // check the WP core for updates
			if(0 != $options['notify_plugins']) { // are we to check for plugin updates?
				$plugins_updated = $this->plugins_update_check($message, $options['notify_plugins']); // check for plugin updates
			} else {
				$plugins_updated = false; // no plugin updates
			}

add_action(self::$cron_name, array(__CLASS__, 'do_update_check')); // action to link cron task to actual task

C:\SVN\WordPress Plugins\WP Updates Notifier>svn cp trunk tags/1.3.1
svn: 'tags' is not a working copy

add_filter('the_content', 'add_extra_content');

function add_extra_content($content){
	if(is_singular('event')){
		$content = '<strong>Description: </strong>'.$content;
	}
	return $content;
}

$wp_the_query = new WP_Query();
$wp_query =& $wp_the_query;

if ( $wp_the_query === $query && ( $query->is_home() || $query->is_search() || $query->is_archive() )  )
        {

if ( $query->is_main_query() && ( $query->is_home() || $query->is_search() || $query->is_archive() )  )
        {

remove_filter ('the_content', 'wpautop');
add_filter('the_content', 'add_extra_content');
add_filter ('the_content', 'wpautop');

function add_extra_content($content){

		$content = '<strong>Description: </strong>'.$content;
	    return $content;
}