Issue #306: health Status view
Message from pascal:
This is a temporary view to put Theo's work online after his internship at Mozilla.
It all works ad is useful but could use some factorization and simplification. I am
working on a Product class which will simplify this view and make it easier to change.
Merge pull request #375 from pascalchevrel/new_health_view

Issue #306: health Status view