I have included the checkstyle in the patch. Also updated the patch to display breadcrumbs according to site tree.
I have added index page for every module. The scale module had README that was used for index page. The crunch core shows the repeated info from the landing page and the example page is still empty. Maybe we can add some specific info for each of them.
PS : I think the patch would have some whitespace warnings. I tried to fix all of them but I dont think that I was completely successful. Let me know if there some issues.