The getData function works on my pc.
SetParams works here.

I think I saw and get the cookie-cutter function "circ_kern" but am
confused by the weighting going on in umask.
Marked what I got and didn't.

I also added a test file, scrap.py, to test what circ_kern was
outputting. I think I'm comfortable with it now, mostly. Next I want to
make a small arbitrary data set and try to use more of the methods bit
by bit. I put blocks around areas of code I think I get so far.
Working on running over a sample image.

See test.fits
I produced data!

But I don't know how to interpret it...
Merge pull request #1 from Schudel888/master

GetData and SetParams work. I'm understanding some of the rest.