IRAF tasks

I had to add the XIDL tasks for Gemini data. At some point, you need to add the x_gmos packages.
1) mkiraf in a new directory (so you have a fresh set of parameter files)
2) To login.cl add: "set x_gmos = ""
3) Near the end, define the package:
task $x_gmos.pkg ".x_gmos.cl"
(the $ sign is necessary and signifies that there is no parameter file)
4) Now it should work to call it as "x_gmos".