Made the SampleApp support background playback. Updated README to point to wiki for background playbackr

ExampleApp/ExampleApp/AppDelegate.m

@@ -10,6 +10,7 @@
 #import "STKAudioPlayer.h"
 #import "AudioPlayerView.h"
 #import "SampleQueueId.h"
+#import <AVFoundation/AVFoundation.h>
 
 @interface AppDelegate()
 {
@@ -22,6 +23,10 @@
 
 -(BOOL) application:(UIApplication*)application didFinishLaunchingWithOptions:(NSDictionary*)launchOptions
 {
+    NSError* error;
+    
+    [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:&error];
+    
     self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
     
 	self.window.backgroundColor = [UIColor whiteColor];

ExampleApp/ExampleApp/ExampleApp-Info.plist

@@ -24,6 +24,10 @@
 	<string>1.0</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
+	<key>UIBackgroundModes</key>
+	<array>
+		<string>audio</string>
+	</array>
 	<key>UIRequiredDeviceCapabilities</key>
 	<array>
 		<string>armv7</string>

README.md

@@ -36,9 +36,9 @@ audioPlayer.delegate = self;
 
 ```
 
-## Background Playback
+## More
 
-Background playback on iOS is easily added to your application by calling the  `AudioSessionInitialize` in your AppDelegate and adding audio to the `UIBackgroundModes` key in your plist file. 
+More documentation is available on the project [wiki](wiki)
 
 ### Authors and Contributors
 Copyright (c) 2012-2014, Thong Nguyen (@tumtumtum)