Log Message:
Update to 0.24

Upstream changes:
0.24  2020-01-30 13:59:56 UTC
        - use better packages/subnames for coderefs
        - add all CONTRIBUTORS to POD
        - add test for working alarm signal in CGIs

0.23  2020-01-17 10:31:33 UTC
        - fix race condition in temp dir creation (jr-dimedis) #24