DVO.CATDIR values in recipes should be abstracted to ipprc level

[eugene]

the DVO.CATDIR values specified in the camera-specific recipes should refer to abstract names in a table defined at the site level which in turn specifies the actual path. this would allow the cameras to refer to conceptually different catdirs (low-density, high-density, sdss primary photometry vs johnson primary photometry, etc) without needing to identify the actual location of those directories.

[Paul Price]

I think this was taken care of in the big user/site/system reorganisation you did a while back.