Contribs: update Qt for win32 to 4.6.2

Compiling qt on win32 is still long and painful

extras/contrib/src/packages.mak

@@ -172,7 +172,7 @@ SDL_IMAGE_URL=http://www.libsdl.org/projects/SDL_image/release/SDL_image-$(SDL_I
 MUSE_VERSION=1.2.6
 MUSE_URL=http://files.musepack.net/source/libmpcdec-$(MUSE_VERSION).tar.bz2
 #MUSE_URL=http://files2.musepack.net/source/libmpcdec-$(MUSE_VERSION).tar.bz2
-QT4_VERSION=4.6.0
+QT4_VERSION=4.6.2
 QT4_URL=$(CONTRIB_VIDEOLAN)/qt4-$(QT4_VERSION)-win32-bin.tar.bz2
 QT4_MAC_VERSION=4.5.2
 QT4_MAC_URL=http://get.qtsoftware.com/qt/source/qt-mac-opensource-src-$(QT4_MAC_VERSION).tar.gz