Deploying App(s) to Digital Ocean using Dokku

[nelsonic]

@iteles in case you're wondering why I'm "working late" today ...
I'm working on "Staging" Continuous (Automatic) Deployment for CI. 🚀

But I don't want to create "noise" on the "official" issue, instead I will just create a PR here
(so that other people can benefit from the knowledge)
and then when it's all working I will copy over the "how-to" as "documentation" for the project.

• Writeup how to deploy multiple apps to the same VM/instance
• Setup & Use a Let's Encrypt Wildcard SSL certificate LetsEncrypt Wildcard SSL Certificate #28
• Create a new App for the current Git branch Read Git Branch on PR #30