Added polyfill of defineproperty

Author: Lucas Vogel

gulpfile.js/index.js

@@ -1,3 +1,4 @@
+var fs = require('fs');
 var gulp = require('gulp');
 var browserify = require('browserify');
 var babelify = require('babelify');
@@ -52,6 +53,7 @@ gulp.task('es2015-to-es5', ['clean'], function() {
 		.bundle()
 		.on('error', util.log.bind(util, 'Browserify Error'))
 		.pipe(source(outputFileName))
+		.pipe(insert.prepend(fs.readFileSync(srcRoot + '/lib/polyfills.js')))
 		.pipe(insert.prepend(
 			'#includepath "~/Documents/;%USERPROFILE%Documents";\n' +
 			'#include "basiljs/bundle/basil.js";\n\n'

src/lib/polyfills.js

@@ -0,0 +1,28 @@
+try {
+    Object.defineProperty({}, 'a', {value: 0});
+}
+catch(err) {
+    // failed: so we're in IE8
+    (function() {
+        var defineProperty = Object.defineProperty;
+        Object.defineProperty = function (object, property, descriptor) {
+            delete descriptor.configurable;
+            delete descriptor.enumerable;
+            delete descriptor.writable;
+            try {
+                return defineProperty(object, property, descriptor);
+            }
+            catch(err) {
+                object[property] = descriptor.value;
+            }
+        };
+    }());
+}
+
+Object.defineProperties || (Object.defineProperties=function defineProperties(object, descriptors) {
+    var property;
+    for (property in descriptors) {
+        Object.defineProperty(object, property, descriptors[property]);
+    }
+    return object;
+});