Neuros paths for flash backpack
The harddrive uses c:/ for the root directory, which positron does fine, but if
I remove the hard drive and use the flash backpack, it fails because the neuros
sees the flash as d:/. A trivial workaround is to substitute D: for C: in lines
160 and 168-9 in src/neuros.py A better fix would be to add a new command-line
flag to switch between neuros roots.