[PDI-8993] - Making ui prompt user for replacing connections, slave servers, partition schemas, cluster schemas when imported in spoon
Merge pull request #532 from brosander/PDI-8993-2

[PDI-8993] - Making ui prompt user for replacing connections, slave serv...
[PDI-8993] - Adding message property for slave server
Merge pull request #533 from brosander/PDI-8993-2

[PDI-8993] - Adding message property for slave server