Some cleanup of settings launching, adding shortcuts.

- Move the battery usage item from applications to phone info.
- Give the battery usage item a summary.
- Fiddle with the manifest to make it so we can launch parts of the settings
  app without messing up launching of the main app.  (That is, remove
  affinities so they each are treated as different tasks.)
- Add the ability to make shortcuts to some key settings panels.

res/values/strings.xml

@@ -424,6 +424,8 @@
 
     <!-- Main Settings screen title -->
     <string name="settings_label">Settings</string>
+    <!-- Label for option to select a settings panel as a shortcut -->
+    <string name="settings_shortcut">Settings</string>
     <!-- Wireless controls settings screen, setting check box label -->
     <string name="airplane_mode">Airplane mode</string>
     <!-- Wireless controls settings screen, setting option summary text -->
@@ -1638,6 +1640,8 @@ found in the list of installed applications.</string>
 
     <!-- Activity title for App Fuel Gauge summary -->
     <string name="power_usage_summary_title">Battery use</string>
+    <!-- Activity title summary for App Fuel Gauge summary -->
+    <string name="power_usage_summary">What has been using the battery</string>
     <!-- Battery usage since unplugged -->
     <string name="battery_since_unplugged">Battery use since unplugged</string>
     <!-- Battery usage since user reset the stats -->