With Jelly Bean comes a hidden Developer Options menu. I guess Google thinks if you can't figure out how to enable developer options you probably shouldn't be digging around in there anyhow. With the new Touchwiz you may have to dig a little to find the build number which you will press 7 times to enable dev options.
Head into settings, hit the "more" tab, then go into software information, next tap on About Device, find the build number and tap that 7 times. Congratulations you are now a developer with Developer Settings!