Expand man page on custom graphs
Start putting the custom pdf settings in a conf file
Add conf file
Comment the table of contents out. We have the PDF index anyway
Add pcp logo image
Cleanup .conf parsing
Prettify the pdf output
Bail out nicely when no usable graphs are found
Ellipsize graph labels that are too long

Some legends become to big because the labels are too long. For example
(disk.dm.*) has long labels with the id. I could cap a limit (say 20)
and then take the first 8 letters and the last 9 letters and add three
dots "..." in the middle.