Call FITS directly in CrayFits

[dannylamb]

Currently, CrayFits proxies a running FITS server, which is actually cleaner/easier than streaming to/from the command line and dealing with STDIN/OUT in PHP. But this introduces an operations complexity because now there's two servers running when could be just one. We have code to do the streaming in Crayfish Commons, so we could adapt Crayfits to use that. Then we can ditch the FITS server from Harvard, which has been problematic in builds anyway.

This one kinda makes me sad, b/c I like how it proxies TBH. But nonetheless, this would let us trim resources that aren't neccessary.