"drc printrules". Implemented a new "drc" command option called
"drc ignore", which can be used to suppress reporting of specific
rules, for both "drc why" and "drc find". This can help with
finding an error buried among a large number of other errors.
The website documentation now points to these contents in a clone
of the repository on opencircuitdesign.com, so all future edits of
the command-line documentation will be made directly to the git
repository. Also: Changed the precision of box values printed in
microns from 2 to 3 digits after the decimal place, so that 5 nanometer
grids do not get values clipped in the output.