* Remove special error script handling.
As a result of that, we can't detect 500 errors and buildIdMismatch via client side.
* Fix failing test cases.
* Refactor the code base.
* Remove Router.onAppUpdated
This fixes one of the crucial bug in Next.js
The issue happens when you try to load a page when it's
prefetching.
With mitt, it only fires the first registered event.
* Introduce script tag based page loading system.
* Call ensurePage only in the dev mode.
* Implement router using the page-loader.
* Fix a typo and remove unwanted code.
* Fix some issues related to rendering.
* Fix production tests.
* Fix ondemand test cases.
* Fix unit tests.
* Get rid of eval completely.
* Remove all the inline code.
* Remove the json-pages plugin.
* Rename NEXT_PAGE_LOADER into __NEXT_PAGE_LOADER__
* Rename NEXT_LOADED_PAGES into __NEXT_LOADED_PAGES__
* Remove some unwanted code.
* Load everything async.
* Remove lib/eval-script.js
We no longer need it.
* Move webpack idle wait code to the page-loader.
Because that's the place to do it.
* Remove pageNotFound key from the error.
* Remove unused error field 'buildError'
* Add much better logic to normalize routes.
* Get rid of mitt.
* Introduce a better way to register pages.
* Came back to the mitt() based page-loader.
* Add link rel=preload support.
* Add assetPrefix support to add support for CDNs.
* Add assetPrefix support for preload links.
* Update readme.md
