Move from wic.oweb.co to csh-dokku.wichacks.io

Moving off of oweb.co

Requires updating (in rough order):
* [ ] New CloudFlare record
* [ ] VM hostname
* [ ] Dokku root domain
* [ ] Dokku domains for existing apps
* [ ] Change CNAME that brickhack.io and www.brickhack.io point to