rename Android Beam sample to Andriod Beam Demo and add launcher icon

Change-Id: If6edb7ac9ba2743ce0dbc39be6f1eede8ef66aaa

build/sdk.atree

@@ -154,7 +154,7 @@ development/samples/source.properties        samples/${PLATFORM_NAME}/source.pro
 development/samples/AccessibilityService       samples/${PLATFORM_NAME}/AccessibilityService
 development/samples/AccelerometerPlay          samples/${PLATFORM_NAME}/AccelerometerPlay
 development/samples/ActionBarCompat            samples/${PLATFORM_NAME}/ActionBarCompat
-development/samples/AndroidBeam                samples/${PLATFORM_NAME}/AndroidBeam
+development/samples/AndroidBeamDemo            samples/${PLATFORM_NAME}/AndroidBeamDemo
 development/samples/ApiDemos                   samples/${PLATFORM_NAME}/ApiDemos
 development/samples/BackupRestore              samples/${PLATFORM_NAME}/BackupRestore
 development/samples/BasicGLSurfaceView         samples/${PLATFORM_NAME}/BasicGLSurfaceView

samples/AndroidBeamDemo/_index.html

@@ -1,3 +1,3 @@
-<p>The Beam application demonstrates how to use the Android Beam feature introduced in API level 14. This
+<p>Android Beam Demo shows how to use the Android Beam feature introduced in API level 14. This
 application beams a simple message from one device to another when they are in close enough proximity. This
 application must be installed on two devices that have NFC capabilities, running Android 4.0 or later.</p>