Joshua Spiewak

Run the docker image in parallel testing each package installer

Enable building on bionic

1

Tweak comments, brackets, etc.

Find new place to get ffmepg 4

2

The PPA has been [taken down](https://launchpad.net/~jonathonf): > I will be removing most of my PPAs from public access due to continued and persistent abuse by companies using these packages for...

So that package installs from one don't affect another See #122

If a user accidentally saves a file with `rsconnect::deployApp` and deploys it, the application will fail to run after it was deployed. It would be nice if the act of...