Replace http-browserify with stream-http

stream-http uses new-style streams to provide true streaming or
pseudo-streaming in as many browsers as possible.

It uses the new fetch api with native browser streams where available
(currently only chrome supports this combination) and various
browser-specific xhr extensions to make binary-safe streaming
work where possible.

It is tested and working with at least basic functionality
back to IE8.

lib/builtins.js

@@ -10,7 +10,7 @@ exports.dns = require.resolve('./_empty.js');
 exports.domain = require.resolve('domain-browser');
 exports.events = require.resolve('events/');
 exports.fs = require.resolve('./_empty.js');
-exports.http = require.resolve('http-browserify');
+exports.http = require.resolve('stream-http');
 exports.https = require.resolve('https-browserify');
 exports.module = require.resolve('./_empty.js');
 exports.net = require.resolve('./_empty.js');

package.json

@@ -40,7 +40,7 @@
     "glob": "^4.0.5",
     "has": "^1.0.0",
     "htmlescape": "^1.1.0",
-    "http-browserify": "^1.4.0",
+    "stream-http": "^1.2.0",
     "https-browserify": "~0.0.0",
     "inherits": "~2.0.1",
     "insert-module-globals": "^6.4.1",

readme.markdown

@@ -225,7 +225,7 @@ When you `require()` any of these modules, you will get a browser-specific shim:
 * [crypto](https://www.npmjs.com/package/crypto-browserify)
 * [domain](https://www.npmjs.com/package/domain-browser)
 * [events](https://www.npmjs.com/package/events)
-* [http](https://www.npmjs.com/package/http-browserify)
+* [http](https://www.npmjs.com/package/stream-http)
 * [https](https://www.npmjs.com/package/https-browserify)
 * [os](https://www.npmjs.com/package/os-browserify)
 * [path](https://www.npmjs.com/package/path-browserify)