Fix multiple BT settings bugs.

- Change Bluetooth profiles screen to match ICS wireframes
- Remove BluetoothProfilePreference.java (no longer used)
- Remove "Pair with this device" summary below every unpaired device
- Remove "Paired but not connected" summary below unconnected paired devices
- Fix auto connection after pairing (reuse existing CachedBluetoothDevice)
- Add "Connected (no phone/media)" summaries based on ICS wireframes
- Fix visibility timeout strings.
- Fix crash when starting Bluetooth from Settings shortcut widget.

Bug: 5064139
Bug: 5064324
Bug: 5080404
Bug: 5093513
Bug: 5104485
Change-Id: Ie87103e183ce414c86cb1831a38ef0178b1b1292

res/layout/preference_bluetooth.xml

@@ -19,13 +19,6 @@
     android:layout_height="wrap_content"
     android:gravity="center_vertical">
 
-    <LinearLayout android:id="@+id/profileIcons"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_centerVertical="true"
-        android:layout_alignParentRight="true"
-        />
-
     <!-- Divider -->
     <ImageView
         android:id="@+id/divider"