fixes #6427 : Can't start server when you upgrade from 2.2 using postgres
#6427 : The run-once tasks are running correctly now for PostgreSQL, MySQL and Oracle (testing with MSSQL). Value in drop down widget was being set based on display name, not vale.
Merge pull request #6443 from dotCMS/issue-6427-cant-start-server-when-upgrade-2-2-using-postgres

fixes #6427 : Can't start server when you upgrade from 2.2 using postgre...