Keep the settings title as "Settings" even if launching a shortcut.

Handle clicks on Settings icon in top-left.
Also fix a bug where Tethering settings was changing the title.

src/com/android/settings/Settings.java

@@ -49,8 +49,12 @@ public class Settings extends PreferenceActivity {
         getMetaData();
         super.onCreate(savedInstanceState);
 
-        // TODO: Do this only if 2-pane mode
-        highlightHeader();
+        if (!onIsHidingHeaders() && onIsMultiPane()) {
+            highlightHeader();
+            // Force the title so that it doesn't get overridden by a direct launch of
+            // a specific settings screen.
+            setTitle(R.string.settings_label);
+        }
     }
 
     @Override

src/com/android/settings/TetherSettings.java

@@ -131,6 +131,7 @@ public class TetherSettings extends SettingsPreferenceFragment {
                 mBluetoothSettings.setEnabled(false);
             }
         }
+        /* Don't change the title for two-pane settings
         if (wifiAvailable && usbAvailable && bluetoothAvailable){
             activity.setTitle(R.string.tether_settings_title_all);
         } else if (wifiAvailable && usbAvailable){
@@ -146,6 +147,7 @@ public class TetherSettings extends SettingsPreferenceFragment {
         } else {
             activity.setTitle(R.string.tether_settings_title_bluetooth);
         }
+        */
         mWifiApEnabler = new WifiApEnabler(activity, mEnableWifiAp);
         mView = new WebView(activity);
     }

src/com/android/settings/accounts/ManageAccountsSettings.java

@@ -216,8 +216,12 @@ public class ManageAccountsSettings extends AccountPreferenceBase
 
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
-        onAddAccountClicked();
-        return true;
+        if (item.getItemId() == MENU_ADD_ACCOUNT) {
+            onAddAccountClicked();
+            return true;
+        } else {
+            return super.onOptionsItemSelected(item);
+        }
     }
 
     private void setBackgroundDataInt(boolean enabled) {