Move ggo files to a separate directory.
Grab cleanups and fixes. Change semantics of the filter number to zero-based.
make gengetopt-2.20 happy
specify the three grab modes as values in grab_client.ggo That makes gengetopt check that the argument to the --mode option is one of sloppy, pedantic, or aggressive, so get rid of E_INVALID_GRAB_MODE, the gc_modes array and of the error check in grab_client.c. Another nice side-effect is that also "s", "p", "a" work as abreviations for the grab mode argument. Reformat grab_client.ggo as we are at it.
gengetopt: use the new (and more descriptive) 'optional' instead of 'no'.
initial git commit Let's try if this works out.