Add browser shim for global setImmediate()

Author: jhnns

index.js

@@ -21,6 +21,7 @@ exports.process						= require.resolve('process/browser.js');
 exports.querystring					= require.resolve('querystring-es3/');
 exports.readline					= null;
 exports.repl						= null;
+exports.setimmediate				= require.resolve('setimmediate');
 exports.stream						= require.resolve('stream-browserify');
 exports._stream_duplex				= require.resolve('readable-stream/duplex.js');
 exports._stream_passthrough			= require.resolve('readable-stream/passthrough.js');

package.json

@@ -20,6 +20,7 @@
 		"stream-browserify": "^1.0.0",
 		"readable-stream": "^1.1.13",
 		"string_decoder": "~0.10.25",
+		"setimmediate": "^1.0.2",
 		"punycode": "^1.2.4",
 		"events": "^1.0.0",
 		"util": "~0.10.3",