parse subcircuit hopefully implemented nicely
better error checking
wednesday morning commit
checks type rather than parses numbers
parse tran
about to start on netlist_device and netlist_subckt
non-picky device readers
monday afternoon: netlist fns
netlist functions first iteration
invalid parameters can no longer be entered
functions can be passed as arguments to sources
Merge branch 'master' of https://github.com/terman/6.004x