Fixed problem with IPCE code which caused segfault in qmos. Added conditional...

Fixed problem with IPCE code which caused segfault in qmos.  Added conditional code to determine if cnetsuite is the executable.  Fixes #4063.

git-svn-id: http://subversion.wr.usgs.gov/repos/prog/isis3/branches/ipce@7060 41f8697f-d340-4b68-9986-7bafba869bb8