[CHANGELOG] Add link to Xcode 5 PR.
[CHANGELOG] Add link to Xcode 5 PR.

mglidden/CocoaPods,vivekshukla-mob-ibtech/Repository,orta/CocoaPods,Ashton-W/CocoaPods,ashfurrow/CocoaPods,segiddins/CocoaPods,mglidden/CocoaPods,mglidden/CocoaPods