Adding Flowchart to help contributors

Hello,

few days ago I was experimenting with PlantUML and I decided to try to formulate a Flowchart I had in my mind with it. Given PlantUML is a UML generator, it was idea for being versioned.

The flowchart I'm proposing is something I have used in my latest talk on GhostDriver at Selenium Camp 2013: https://speakerdeck.com/detronizator/getting-started-with-ghostdriver.

While defining a 1-size-fit-all "flow" can be
close to impossible, I think a _generic enough_
procedure can be outlined.

This is an attempt.

The image is rendered using PlantUML (http://plantuml.sourceforge.net/),
a self-executing Java JAR/library that can generate UML
out of a defined language.
Source file for the flowchart is provided.

What do you think?