Merge branch 'release/2.1.19' into develop
Bumped version for development after release.
Fixed retrieval of delegate functions when user had multiple functions durring a year some of which are no longer active.
Avoid NullPointerException.
Make text more comprehensive.
Don't filter candidacies that have not been validated by the candidates.
Bumped version for release of 2.1.20
Merge branch 'release/2.1.20'