6.0.4-canary.4 release notes

Rename dist to server to be more consistent: #4506
Next/head allow duplicates if it has uniq keys: #4121
Remove deprecated and removed route: #4509
Fixes bug in with-react-intl example: messages and locale variables were undefined on CSR: #4517
Add CONFIG_FILE constant, add types for server/config.js: #4529
Remove uglify options in preparation of webpack 4: #4536
Clean up references to this.dir and this.dist everywhere: #4535
Make router properties update when re-rendering: #4541
Upgrade with-jest-typescript example to next 6.0.0: #4543
Stop duplicating charset: #4546
Add dependencies of _app.js to commons: #4396
Added example for Ant Design with LESS: #4520
Use a more appropriate regexp for removing hash from a filename: #4510
Remove react-hot-loader dependency: #4550
Fix Access-Control-Request-Method header: #4424
[with-apollo-auth] Remove useless apolloState from App's props: #4554
[with-apollo-auth] Remove useless check from constructor: #4560
[with-apollo-auth] simplify apolloState prop: #4563
Upgrade gh-pages example to next 6.0.3: #4575
Upgrade update-check: #4585
With-firebase-hosting: fix npm scripts, remove firebase.json predeploy scripts: #4593
Clean up Redux example: #4594