Remove non-jb message in README.md

The message said that the non-jailbreak was extremely outdated and couldn't be updated again...so I fixed it.

YAY, MY FIRST PULL REQUEST
Changed LIghtning Jit to Lightning JIT in README

Who was typing this? :P
Update NDSSettingsViewController.m
Fixed some device names

iPhone 4s, iPad 1, and iPod Touch 4.
(Apple calls is 4s, not 4S but 3GS is right and so is 5s)
Merge pull request #194 from Sachmach29/master

Fixed two Lightning JIT typos and removed non-jb message and fixed devices in README.md