add removeScriptElement plugin

plugins/removeScriptElement.js

@@ -0,0 +1,23 @@
+'use strict';
+
+exports.type = 'perItem';
+
+exports.active = false;
+
+exports.description = 'removes <script> elements (disabled by default)';
+
+/**
+ * Remove <script>.
+ *
+ * https://www.w3.org/TR/SVG/script.html
+ *
+ * @param {Object} item current iteration item
+ * @return {Boolean} if false, item will be filtered out
+ *
+ * @author Patrick Klingemann
+ */
+exports.fn = function(item) {
+
+    return !item.isElem('script');
+
+};