Merge pull request #11 in SWC/plrelational from swift-4-migration to master
* commit '55b11bbd0037036d9396482da15ce21f7b5c9db3': (30 commits)
Remove one more instance of unnecessary full qualification.
Migrate BindableControlsApp and Visualizer to Swift 4.
Fix CheckState to use NSControl.StateValue directly instead of raw values and fix case statement (was on instead of off).
Fix some more cases of unnecessary full qualification inserted by the migrator.
Drop some unneeded full qua...