The project needs continuous integration with a dashboard

[cbrune]

It would be great for the project to use public continuous integration and provide a public dashboard of current build status.

Nice features that come to mind:

• build every machine for every change
• provide a decent dashboard to display the results

A big stretch goal would be to automate some tests. For that a first step would be to automate tests for the kvm_x86_64 virtual machine and OCE.

[cbrune]

Add some smarts so that only the relevant platforms are rebuilt based on the commit contents