include jedut_build among canonical components

support for platform-specific components

correction: proper initialization of existing component

snippet to be sourced in user settings file in order to initialize components for a repository revision;
the initialization is ?liberal? since there is no obvious solution yet for components whose distribution is restricted

more standard filename for common components

updated crontab on macbroy27 and macbroy2;

use macbroy27 instead of macbroy28, which is broken for several weeks already;

reintroduced "t@" encoding, this time sound

compile

tuning