Add support for flywayUndo as well as undoSqlMigrationPrefix, dryRunOutput and errorHandlers settings #20
Description
These are specific to Flyway Pro and Enterprise but should be trivial to add.
See
- https://flywaydb.org/documentation/gradle/undo
- https://flywaydb.org/documentation/gradle/migrate#undoSqlMigrationPrefix
- https://flywaydb.org/documentation/gradle/migrate#errorHandlers
- https://flywaydb.org/documentation/gradle/migrate#dryRunOutput
It would be great to get this in before 5.0.0 goes final.