version of solver.jl needed to create puf.csv not where taxdata expects it

[donboyd5]

I haven't yet figured out how to modify Makefile to address #380 so that I can run make puf-files (although it works fine for make cps-files), so I am running the individual puf-related programs in taxdata. I have encountered a problem:

• taxdata/createpuf.py works fine
• taxdata/puf_stage1/stage1.py works fine
• taxdata/puf_stage2/stage2.py ran into the problem shown in the screenshot below -- it is looking for solver.jl in taxdata/ but in fact that file is in taxdata/puf_stage2/; I suspect the goal was to have a single solver.jl file in `/taxdata/' rather than separate versions for puf and cps as taxdata has now

I have copied my version of solver.jl (modified per #381) into taxdata/ and it is working fine so far, although this may not be the best solution. I will edit this note or add a new issue if I run into further issues.

[andersonfrailey]

@donboyd5 I got a similar error when I was struggling to get the solver running. My error was because the solver never ran so 20**_output.npz was never written.