silence "unused variable" warnings
add "old-style cast" to the list of ignored warnings

This variable comes from KWSys's forwarding executable code.
get voAnalysisTest to pass
fix memory leaks in tests
Merge branch 'cleanup_dashboard'

* cleanup_dashboard:
  fix memory leaks in tests
  get voAnalysisTest to pass
  add "old-style cast" to the list of ignored warnings
  silence "unused variable" warnings