Opensourcing the bundle

[Taluu]

Here is a bunch of things left to do before opensourcing this bundle...

• Split the bundle from our main project
• Add a LICENSE file
• Add a README file
• Add some docs meh, enough stuff said in the README
• Handle parameters the user must provide None actually, everything must be in the tree config
• Clean up private config related stuff
• Remove status things (sorry @krichprollsch - we would need I guess to handle these things somewhere else)
• Invite @odolbeau, as he was interested in this bundle
• Cleanup config (tree and what we should expect in it)
• Move the generated config into a cache dir (the application one) ? Won't fix cuz complicated handloing of binaries etc.
• Generate the rabbit.sh main file when installing this bundle (Composer Script ?), so that paths are correct and all (cf Rework main rabbit.sh entrypoint #3) Won't fix, just suggesting @odolbeau's rabbit manager is currently enoug. Making a bridge could be interesting though.

And some other things basically.