handle the exception case, previous segfault test will become a failing test
avoid passing reference to std::async ; force launch policy
allowing longer execution time (avoid being reported as failure during experimental tests over low spec machine)
allowing more execution time (avoid being reported as failure when running on Windows or low spec machine)
Merge pull request #7 from maqi/MAID-108_ChunkStoreTest.BEH_Restart

Maid 108 chunk store test.beh restart
Merge pull request #11 from maqi/MAID-110_SyncTest.BEH_MultipleParallelRandomAction

allowing longer execution time during experimental test