supports Hy code.
All code-blocks in the documentation have been changed from
clojure to hy.
Also added docs/make.bat for Windows, so the top-level docs
target now works on Windows as well.
For the --spy commmand line option, it currently says '''Print equivalent Hy code...'''. Now, I haven't actually gotten around to installing Hy on my computer yet, so I haven't had a chance to test this out to make sure, but from the looks of the code example, it looks as though it is printing out the equivalent Python code of the executed Hy code, not the other way around. This would certainly make more sense. As such, I have changed the word 'Hy' to 'Python' so that the documentation more accurately reflects what (one assumes) is going on.
