Merge pull request #1765 from RosettaCommons/BYachnin/Fix_Segfault_after_Execution
Removed tracer output in destructor to fix segfault.
Several integration tests lose the tracer output core.chemical.ResidueType: Residue dstor as expected, including integration.release-debug (cyclization, ddG_of_mutation, fiber_diffraction_fad, fold_and_dock) and integration (cyclization, ddG_of_mutation, fiber_diffraction, and fold_and_dock).
mac.clang.integration.features_parallel failed due to different sqlite versions on the test servers.