Making doc comments valid.
Improved legibility on table data.
Squeezing more space out of the layout.
Tidying up CSS to make it easier to work with.
Adding page title
Code and style tidy up for tables, in particular that stats table inside the graph.
Adding back alignment as it was before
In my opinion not having the sub headings for dirs with only 1 file in is confusing and it is more clear with one for all dirs with a file in.
This is no longer needed due to previous commit