(Automake) Remove policy checks from make-all
(Build System) Standardize file path specification
(vseeding) Add vulnerabilitySeeding submodule back (removed by 33872293b)
(Build System) Fix Python version check

* Use `$ac_python_version` which is set by `AX_PYTHON_DEVEL()`
* Fix bash syntax errors in if..else
(HPCToolkit) Validate $HPCTOOLKIT_HOME in hpctoolkit-test3
(HPCToolkit) Add PAPI events in hpctoolkit-test3
Merge remote-tracking branch 'origin/master' into HEAD
Merge remote-tracking branch 'origin/master' into HEAD