[wishlist] set a default size to the mainwindow on the 1st run

[Fathi Boudra]

Hi,

Could you set a default size to the kdevelop4 mainwindow on the 1st run 
(640x480, 800x600 or maximized seems fine) ?

From a user point of view, it shouldn't be tiny as it is right now.

cheers,

Fathi