data/Tracker php7 construct

data/Tracker.php

@@ -44,14 +44,21 @@ class Tracker {
         "item_id",
         "item_summary"
     );
-
-    function Tracker()
+	function __construct()
     {
         $this->log = LoggerManager::getLogger('Tracker');
-	// $this->db = PearDatabase::getInstance();
-	global $adb;
+		// $this->db = PearDatabase::getInstance();
+		global $adb;
         $this->db = $adb;
     }
+    function Tracker()
+    {
+		
+		// PHP4-style constructor.
+        // This will NOT be invoked, unless a sub-class that extends `foo` calls it.
+        // In that case, call the new-style constructor to keep compatibility.
+        self::__construct();
+    }
 
     /**
      * Add this new item to the vtiger_tracker vtiger_table.  If there are too many items (global config for now)