asymmetric MOSFET definitions in the tech file "extract" section.
Corrected the nmos.tech.in file to put the resistance classes in
plane order, as otherwise the interpretation of which resistance
classes belongs to the transistor source and drain can get messed
up by the presence of buried contacts.
magic (version 6.3) and lightly edited it to make it compatible
with version 8.3. Edited the scmos/Makefile so that it installs
with the rest of the distributed tech files.