[Cocoapsql-developer] commit: minor corrections on the Menu

[Olaf v. O. <ol...@ad...>]

Reconnected the Prefferences menu item outlet. Now to the PSQLController 
instance to have it work when there is no firstResponder available. 
Added setAutoenablesItems:YES to PSQLControler's awakeFormNib while the 
mainMenu.nib keeps forgetting the setting for the Connect menu and the 
Datamenu.