Thread.sleep for windows: for non-zero timeout, sleep at least 1ms
reuse rt_init/rt_term in main

- runModuleUnitTests is no longer called from rt_init
  but needs to be called separatly
add HashTab container
Merge pull request #584 from rainers/sleep_non_zero

Thread.sleep for windows: for non-zero timeout, sleep at least 1ms
Merge pull request #592 from dawgfoto/hashTab

add HashTab container
Merge pull request #587 from dawgfoto/refactorMain

reuse rt_init/rt_term in main