In vimscal, fixed the default value for the solar remove coefficient. Without...

In vimscal, fixed the default value for the solar remove coefficient. Without this fix, some resulting files had I/F values much larger than 1.0. Fixes #1143.

git-svn-id: http://subversion.wr.usgs.gov/repos/prog/isis3/trunk@4742 41f8697f-d340-4b68-9986-7bafba869bb8