Timob 17238 - iOS 8 Interactive Local Notifications

## For iOS 8 or newer only. 
Details: https://jira.appcelerator.org/browse/TIMOB-17238

## New Feature:
Support for iOS 8 Interactive Local Notifications. Apple has added notification action support so that user can immediately handle notifications in the home screen or lock screen, without the user having to enter the app. To enable this for both local and remote notifications, the following steps have to followed:
1. Create and Configure Notification Actions
2. Create and assign Notification Actions to Notification Categories
3. Register the Notification Categories and Notification Types
4. After which, add event listeners for notifications received while the app is active, or in background.

## Detailed Steps:
### 1. Create and Configure Notification Actions

```javascript
	var acceptAction = Ti.App.iOS.createUserNotificationAction({
		identifier: "ACCEPT_IDENTIFIER",
		title: "Accept",
		activationMode: Ti.App.iOS.NOTIFICATION_ACTIVATION_MODE_BACKGROUND,
		destructive: false,
		authenticationRequired: false
	}) ;
```

**key parameters:**
activation Mode: NOTIFICATION_ACTIVATION_MODE_BACKGROUND, NOTIFICATION_ACTIVATION_MODE_FOREGROUND
determines where app should be activated when user selects this action
destructive: if this action does something permanent like delete
authenticationRequired: if this action needs user to enter pin to continue

### 2. Create and assign Notification Actions to Notification Categories

```javascript
	var backgroundCategory = Ti.App.iOS.createUserNotificationCategory({
		identifier: "BACKGROUND_CATEGORY",
		actionsForDefaultContext: [acceptAction, maybeAction, declineAction],
		actionsForMinimalContext: [acceptAction, declineAction]
	});
```

**key parameters:**
actionsForDefaultContext: default actions to show. Will show all if user has set app to display notifications in alert style.
actionsForMinimalContext(optional) : actions to show when user has set app to display notifications in banner style, and in lock screen.

### 3. Register the Notification Categories and Notification Types

```javascript
    Ti.App.iOS.registerForLocalNotifications({
    types: Ti.App.iOS.NOTIFICATION_TYPE_SOUND | Ti.App.iOS.NOTIFICATION_TYPE_ALERT,
    categories: [backgroundCategory,backgroundLockCategory,foregroundCategory]
	});
```

**Note: categories: nil will allow local notifications to work without actions**

### 4. Add event listeners

```javascript
// for notifications received while app is in foreground
Ti.App.iOS.addEventListener('notification',function(e)
{
    var content = e.userInfo.content;
   //do stuff with notification received
});

//for notifications received while app is in background
Ti.App.iOS.addEventListener('backgroundNotification',function(e)
{
    var content = e.userInfo.content;
    var identifier = e.identifier;
   //do stuff with notification received
});
```

**Note: To enable interactive remote notifications, steps 1 to 3 should be done as well. Followed by    Ti.Network.registerForPushNotifications. Require ACS to add additional field "category" to aps push packet, so that we can enable this for remote notifications.**


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