af_comics: pass PluginHost to filter constructors

plugins/af_comics/filter_base.php

@@ -3,6 +3,10 @@ abstract class Af_ComicFilter {
 	public abstract function supported();
 	public abstract function process(&$article);
 
+	public function __construct(/*PluginHost $host*/) {
+
+	}
+
 	public function on_subscribe($url) {
 		return false;
 	}

plugins/af_comics/init.php

@@ -34,7 +34,7 @@ class Af_Comics extends Plugin {
 
 				array_push($names, $filter_name);
 
-				$filter = new $filter_name();
+				$filter = new $filter_name($host);
 
 				if (is_subclass_of($filter, "Af_ComicFilter")) {
 					array_push($this->filters, $filter);