* When creating a default visual model from a math model, connections are now created as polylines by default
* When creating a default visual model from a math model, connections are now created as polylines by default

* Changed error message when invalid selection is selected
danilovesky/workcraft,jrbeaumont/workcraft,danilovesky/workcraft,jrbeaumont/workcraft,workcraft/workcraft,workcraft/workcraft,jrbeaumont/workcraft,danilovesky/workcraft,tuura/workcraft,tuura/workcraft,tuura/workcraft,danilovesky/workcraft,workcraft/workcraft,workcraft/workcraft