Added all prerequisite programs in binary for easier use.
Make is now implemented top-level, and is not expected to do too much
work actually. It will, however, keep track of all required
gsl invocation and make sure calls are efficient by not having
to rebuild everything every time. That's what make does, anyway ;)
That way, it will remain clearly documented how to do this, and allow
for efficient calling of gsl as well, at some point.
Of course it will be a little more difficult for us to know all
dependencies, but gsl could generate these as well for us, I suppose.
