[Raine-dev] a few bug fixes

[Emmanuel A. <em...@ab...>]

I have just commited a few bug fixes :
 - sound init was hanging when the driver could not be initialised. I
   hope it's the last time I fix it !
 - Games using silence were hanging when using the new fm interface
 - auto-switch res :
The big error for Antiriad yesterday was because I missed a very big
buffer overflow ! I missed it because in Xfree my driver was never
changing ! Now I have tested it extensively in SVGA mode (console),
and discovered that I had to change the res in 2 times :
 - the first before calling the game loading function (to change the
   bpp for it)
 - and then wait until the end of the loading to actually change the
   real bpp and the res.
With all that the auto switch res should be much more stable.

I know I already said something very similar yesterday, but...
So I commented out the ifdef RAINE_UNIX you added, Antiriad. Test it
and if it hangs again, well... delete the comments then !