Changes:
new epia target for 512k: targets/via/epia/Config.512kflash.lb
epia defaults to 256k flash
buildtarget now takes either a directory, and uses directory/Config.lb, or takes a file
e.g.
buildtarget via/epia will use via/epia/Config.lb, and buildtarget via/epia/Config.512kflash.lb will use that file.
ron