iOS language changer example app

A simple app that allows the user to change language in-app, independent of the device setting.

See http://createdineden.com/blog/2014/december/12/language-changer-in-app-language-selection-in-ios/ for the accompanying tutorial.

Make all files into INAppLanguageManager.h && INAppLanguageManager.m, make it more easy to use.

1. after didFinishLaunchingWithOptions, init the INAppLanguageManager with code

     [INAppLanguageManager shareINAppLanguageManager];
   

2. register notification in where you want to change language, usually in UIViewController,ViewDidLoad methods with code

     [self setIsRegisterINAppChangeLanguage:YES];
   

3. Implemente method

     - (void)INAppLanguageChanged:(NSNotification *)noti,
   

In this method you could change localized string with

  INAppLocalisedString(@"key",nil)