* Add next/config
* Set config on server start / client render
* Add documentation for next/config
* Add next/config support for next export
* Fix test
* Use the correct name
* Set default to empty object on the client side
* Add config tests
* Rename config to runtimeConfig
* Allow next.config.js to export a function
* Expose phases to the configuration function
* Use same value as variable name
* Add next/constants
* Add documentation for config function / phases
* Add constants.js to npm bundle
* Use without .js for the filename.
* Modify the chunk filename to add .js via webpack
* Add import chunk's hash to the filename via webpack.
* Remove buildId from dynamic import urls.
* Make sure next-export work with dynamic imports
* Always fetch pages with '.js' extention from client side.
* Load error page always from _error.js rather _error/index.js
* Load pages from page.js instead of page/index.js from the client for static exports.
* Update index.js
* Simplify the path re-write logic in the webpack pages-plugin.
* allow use of filenames in exportPathMap
* add link test and handling for file paths when flattening links for export
* add note about exporting file paths to readme.md
* Always check with the fs when gettings chunks.
* Add a new set of test cases for dynamic imports in dev.
* Add dynamic import test cases for production.
* Add availableChunks support for static exports.
