Support for PHP 7 instead of PHP 4

Refactor control_html class to use constructor for initialization

Upload/inc/plugins/htmlposts.php

@@ -208,9 +208,10 @@ function htmlposts_parse(&$message)
         {
             public $html_enabled;
     
-			function control_html()
+            function __construct()
             {
                 // Is it enabled already? Save it in a var to later disallow disabling
+                global $parser;
                 $this->html_enabled = $parser->options['allow_html'];
             }