Utility base class for window controllers.
Change defaults observing a bit.
Remove some unused stuff.
Update some old code to follow ObjC conventions.
Work on reloading and canceling.
Use window controller base class.
New tentative app icon.
Sync xcodeproj with files.
SSh tunnel: Wrap in @autoreleasepool, polish error handling a bit.
Extend SQL syntax definition.
Minor query status polish.
Rework PostgreSQL query loop.