Merging the Limesurvey 1.91+ branch of queXS in to the trunk

include/limesurvey/classes/dTexts/dFunctions/dFunctionInterface.php

@@ -0,0 +1,11 @@
+<?php
+/**
+ * Interface for dynamic texts functions/classes
+ * @author lime-nk Michal Kurzeja
+ *
+ */
+interface dFunctionInterface
+{
+	public function __construct();
+	public function run($args);
+}