Update TODO
Initial graph per page limiting implementation

If the number of graphs exceeds a certain treshold. Split it on two
pages in the pdf, so that we do not have such compressed graphs any
more. Add --maxgraph option in order to let the user override it.
Fix testsuite
Clean up TODO now that graphs per page has been implemented
Clean up testsuite and make it smaller so it does not crash my system
One big sar file is enough