prelimary mingw cross compile instructions

[Ralf Habacker]

hi all,

currently I've released an initial how to for cross compiling mingw, 
which let compile qt much faster as with native mingw compiler  tool chain

Howto: http://sourceforge.net/project/shownotes.php?release_id=318305  
rpm's: 
http://sourceforge.net/project/showfiles.php?group_id=49109&package_id=149157&release_id=318305

It would be nice if anyone can verify this howto before we can make an 
official howto.

Thanks
Ralf