Adds the Random Music Player sample.

This sample illustrates how to write an application that plays media
in the background, handles streaming media from the network and
reacts appropriately to system events like headphone disconnection and
audio focus changes, and also uses the notification system to
keep the user informed about what is happening.

This CL is a cherrypick of the old CL 104495 (originally in
honeycomb-mr1) into honeycomb-mr2. Original CL:
https://android-git.corp.google.com/g/#change,104495

Change-Id: Ib8b15ee920300adc093a8b52c17bd9c251ac74ca
diff --git a/samples/RandomMusicPlayer/_index.html b/samples/RandomMusicPlayer/_index.html
new file mode 100644
index 0000000..657e6c4
--- /dev/null
+++ b/samples/RandomMusicPlayer/_index.html
@@ -0,0 +1,8 @@
+<p>A simple music player that illustrates how to make a multimedia application
+that manages media playback from a service. It allows the user to play music
+available on the device or specify a URL from which the media should be
+streamed.  It also illustrates how to use the notification system to indicate
+an ongoing task and how to deal with audio focus changes.</p>
+
+<img alt="" src="../images/randommusicplayer.png" />
+