App Distribution Guide
https://developer.apple.com/library/ios/documaentation/IDEs/Conceptual/AppDistributionGuide/Introduction/Introduction.html#//apple_ref/doc/uid/TP40012582
马上着手开发 iOS 应用程序 (Start Developing iOS Apps Today)
https://developer.apple.com/library/ios/referencelibrary/GettingStarted/RoadMapiOSCh/WhereToGoFromHere.html#//apple_ref/doc/uid/TP40012668-CH12-SW1
Create an IPA file using Xcode
http://virteom.com/how-to-create-an-ipa-file-using-xcode
iOS 7教程-Storyboards Part1
http://www.tairan.com/archives/5365