Refactoring

As an iOS 7 widget, the code can expect XCode 5

Conflicts:
	CustomIOS7AlertView/CustomIOS7AlertView/View/CustomIOS7AlertView.h
	CustomIOS7AlertView/CustomIOS7AlertView/View/CustomIOS7AlertView.m
Merge branch 'Refactor' of https://github.com/dingosky/ios-custom-alertview into dingosky-Refactor
[merge] Merged @dingosky Refactor branch + applied quick code style refact