- Build: Update per latest Babel/Rollup

- npm: Update devDeps (no resulting license changes)

dist/extensions/ext-server_opensave.js

@@ -153,11 +153,13 @@ var svgEditorExtension_server_opensave = (function () {
   }
 
   function _createSuper(Derived) {
+    var hasNativeReflectConstruct = _isNativeReflectConstruct();
+
     return function () {
       var Super = _getPrototypeOf(Derived),
           result;
 
-      if (_isNativeReflectConstruct()) {
+      if (hasNativeReflectConstruct) {
         var NewTarget = _getPrototypeOf(this).constructor;
 
         result = Reflect.construct(Super, arguments, NewTarget);
@@ -251,7 +253,7 @@ var svgEditorExtension_server_opensave = (function () {
     if (typeof o === "string") return _arrayLikeToArray(o, minLen);
     var n = Object.prototype.toString.call(o).slice(8, -1);
     if (n === "Object" && o.constructor) n = o.constructor.name;
-    if (n === "Map" || n === "Set") return Array.from(n);
+    if (n === "Map" || n === "Set") return Array.from(o);
     if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
   }