Removed non-existent validateMember function and fix in addVoMember
Merge pull request #535 from tauceti2/addVoMemberFix

Removed non-existent validateMember function and fix in addVoMember
GUI: always sort task results by date (newer first)
Merge pull request #536 from zlamalp/sorting

GUI: always sort task results by date (newer first)
export more generic version of TaskDao::updateTask() through TaskManager