- boom/boom-config.in: new command "manu" to list the manufacturers
- manu/Makefile: run make for targets "all", "test", "sane", and "spotless"
on each manufacturer directory
- boom/Makefile, boom/boom-config.in: add a warning to boom-config that the
file is machine-generated
- boom/boom-config.in (usage): complain about unrecognized keywords