operation_tests2.cpp:  Implement zero_second_vbo test for issue #390
operation_tests2.cpp:  Implement zero_second_vbo test for issue #390

oxarbitrage/bitshares-core,bigoc/openchain,peertracksinc/muse,abitmore/bitshares-2,bitsuperlab/cpp-play2,bitshares/bitshares-2,pmconrad/graphene,bitsuperlab/cpp-play2,oxarbitrage/bitshares-core,bitshares/bitshares-2,bitshares/bitshares-2,bigoc/openchain,cryptonomex/graphene,bigoc/openchain,abitmore/bitshares-2,cryptonomex/graphene,peertracksinc/muse,cryptonomex/graphene,bigoc/openchain,peertracksinc/muse,bitshares/bitshares-2,abitmore/bitshares-2,pmconrad/graphene,oxarbitrage/bitshares-core,oxarbitrage/bitshares-core,bitsuperlab/cpp-play2,pmconrad/graphene,abitmore/bitshares-2,pmconrad/graphene,peertracksinc/muse