[Development] Tons of warnings in the Cocoa plugin

[Sorvig Morten]

On Mar 21, 2013, at 10:55 PM, Thiago Macieira <thiago.macieira at intel.com> wrote:

> Someone who knows about this, could you please take a look?
> 
> The first and third warnings are scary.

Fixed most of them: 

https://codereview.qt-project.org/51868
https://codereview.qt-project.org/51869
https://codereview.qt-project.org/51870
https://codereview.qt-project.org/51871
https://codereview.qt-project.org/51872
https://codereview.qt-project.org/51873

Two exceptions:

[NSApp setAppMenu] is inherited from Qt 4 and is as far as I can see the only way to keep that Qt 4 feature/API working (see 51871).

I also left the color-space related ones. My plan is to take a closer look at color space support at some point after I return from my leave (which means after summer), and leave the current code as-is until then. 

Morten