set things up so that Hogg can run the code

[davidwhogg]

This entails:

1. A top-level makefile that "curl -O"s the data -- the star model input files and so on -- into a data directory. (That is, don't check in these large files, refer to them in a makefile; Hogg can help here.)
2. A command-line command of some kind that generates some set of fake data and then fits it.

[karllark]

Yeah, this will be done. I am planning on cleaning this up as I enhance the stellar model to include metallicity as a parameter. This forces me to deal with the bloody formats that the stellar atmosphere and evolutionary track models are in. I've already done some work on this, but need to spend a bit more time cursing at the computer to finish it.