Specify globalObject name and include IE9 buid

Author: photonstorm

config/webpack.dist.config.js

@@ -13,15 +13,18 @@ module.exports = {
         phaser: './phaser.js',
         'phaser.min': './phaser.js',
         'phaser-arcade-physics': './phaser-arcade-physics.js',
-        'phaser-arcade-physics.min': './phaser-arcade-physics.js'
+        'phaser-arcade-physics.min': './phaser-arcade-physics.js',
+        'phaser-ie9': './phaser-ie9.js',
+        'phaser-ie9.min': './phaser-ie9.js'
     },
 
     output: {
         path: `${__dirname}/../dist/`,
         filename: '[name].js',
         library: 'Phaser',
         libraryTarget: 'umd',
-        umdNamedDefine: true
+        umdNamedDefine: true,
+        globalObject: 'this'
     },
 
     performance: { hints: false },