Merge pull request #2458 from RosettaCommons/jklai/hydrate
Fixing remaining failed tests for the Hydrate/SPaDES application. PR #2418 broke multiple tests, which were subsequently fixed with commit 5441c8635ed5f646 and some changes by Andy Watkins. The changes in this PR fixes the remaining two failed integration tests: "thread_local_tracers_check" and "app_exception_handling," which were identified by the test server and in a comment by Rocco Moretti.