Refs #100419.  Added exittest utility to make sure nothing hangs in command-line programs.
Refs #100419.  Added exittest utility to make sure nothing hangs in command-line programs.

ebollens/ccnmp,svartika/ccnx,svartika/ccnx,cawka/ndnx,svartika/ccnx,ebollens/ccnmp,ebollens/ccnmp,svartika/ccnx,cawka/ndnx,svartika/ccnx,cawka/ndnx,svartika/ccnx,svartika/ccnx,ebollens/ccnmp,cawka/ndnx,cawka/ndnx