contribs: updated binary package for Mac OS X (i686 and x86_64 only for now)

Note that the x86_64 package doesn't include libsdl, libsdl_image and goom2k4, as these aren't 64bit compatible.

extras/contrib/Makefile

@@ -43,7 +43,11 @@ src: using-src
 
 ifdef HAVE_DARWIN_OS
 
+ifdef HAVE_DARWIN_OS_ON_INTEL
+CONTRIBREV=6
+else
 CONTRIBREV=5
+endif
 contrib-macosx-$(ARCH)-$(CONTRIBREV).tar.bz2:
 	$(WGET) ftp://ftp.videolan.org/pub/videolan/testing/contrib/$@