New version of the Flowcell page.

So this is the PR for the new flowcell page. The couchdb view is not in production yet. Anyone know how to do that in a properly documented manner ?

Tack

Denis
I did create the narrow-headers class because I didn't like how the default handled the width of the column, but I did't think it was worth it to create classes that just change the default background since bootstrap had some.