UserInterface.h: 2011-09-21 Steven Lambright - When the -batchlist does not...

UserInterface.h: 2011-09-21 Steven Lambright - When the -batchlist does not understand a variable it would crash. This prevented users from entering variables like $base, $mro, etc. Now when -batchlist does not understand a variable it preserves it in the parameter list. Fixes #365. 

git-svn-id: http://subversion.wr.usgs.gov/repos/prog/isis3/trunk@3276 41f8697f-d340-4b68-9986-7bafba869bb8