renderer: allow some lateness within vblank interval
dvdplayer: set clock for all streams as long master has not synced
[osx/docs] - update README.osx - we support building with Xcode 5.1.1 on Mavericks 10.9.x against SDK 10.8 and 10.9
[ios/depends] - remove -no-integrated-as from xcode5 cflags - fixes compile of most of depends for xcode5.1 (clang 503.0.40) - see http://llvm.org/bugs/show_bug.cgi?id=17240
[ios/depends/ffi] - libffi needs -no-integrated-as - see https://github.com/atgreen/libffi/issues/50
[ios/libmpeg2] - fix compilation of libmpeg2 when using xcode 5.1.1 (this motion_compensation stuff doesn't work that way)
[osx/ios/depends] - expose the xcode version to depends makefiles