Refs #100785  Add missing return from main, use correct license, remove obsolete build notes.
Refs #100785  Add missing return from main, use correct license, remove obsolete build notes.

svartika/ccnx,svartika/ccnx,svartika/ccnx,cawka/ndnx,cawka/ndnx,svartika/ccnx,cawka/ndnx,svartika/ccnx,svartika/ccnx,svartika/ccnx,cawka/ndnx,cawka/ndnx