Massive updates to entire process

This update breaks everything and then fixes it and probably breaks it
again.

Good news:
* ./app build (repo path) works

* We're using the fancy schmancy Symfony Process component because it's
  great

* The project now takes a much more freeing set of configuration
  options, in the form of a "commands" array to be run in order and a
hooks array with keys like "afterFailure", "afterSuccess", and
"afterBuild".

Bad news:

* The server command has been deleted and may or may not be working. I
  got it working locally very well, but then decided to fundamentally
  restructure both the project and its scope. This is now no longer a
  single app CI server, but a full CI server designed to manage multiple
  apps from a trusted source (no virtulization means you better be damn
  sure that the app doesn't have "rm -rf /" as one of its commands).

  You're welcome.

  This also means that the app will be undergoing some more huge
  structural changes, including a move to a full stack Symfony framework
  instead of just the Console component (+ other components I wanted).

So, more updates on their way. Stay tuned and all that.