tinify webpacks (#1975)

* tinify webpack

* meme

* fix long version

* more changes

* even smoler

* fix up logic

* fix build

* undo changes to user agent manager because its not webpack'd anymore

* the heck

* fix stupid

* clean up browser rules

* typo

src/rest/APIRouter.js

@@ -1,10 +1,8 @@
-const util = require('util');
-
 const noop = () => {}; // eslint-disable-line no-empty-function
 const methods = ['get', 'post', 'delete', 'patch', 'put'];
 const reflectors = [
   'toString', 'valueOf', 'inspect', 'constructor',
-  Symbol.toPrimitive, util.inspect.custom,
+  Symbol.toPrimitive, Symbol.for('util.inspect.custom'),
 ];
 
 function buildRoute(manager) {