Added gui.GuiUtil
GenericPanel: Updated to use GuiUtil
LabelFieldPair: updated reference
MessagePanel now has an ellipsis button for a picker
Gui frames now use platform's native window positioning
Orders: Removed debug message
Database: Removed redundant imports
Added db.DatabaseIntegrityException
SearchPicker + derived: Now positions itselfrelative to parent frame
RankLogic: updated to use newer functionality
Database: updates can now throw DatabaseIntegrityException