[Ruby Version] Change to the correct version 2.1.3
[Ruby Version] Change to the correct version 2.1.3

k0nserv/trunk.cocoapods.org,k0nserv/trunk.cocoapods.org,billinghamj/trunk.cocoapods.org,k0nserv/trunk.cocoapods.org,Shawn-WangDapeng/trunk.cocoapods.org,CocoaPods/trunk.cocoapods.org,CocoaPods/trunk.cocoapods.org,billinghamj/trunk.cocoapods.org,Shawn-WangDapeng/trunk.cocoapods.org