Added assets for preference panel and adjusted layout margins for new spec.

        } else {

            // If there are no headers, we are in the old "just show a screen

            // of preferences" mode.

            setContentView(com.android.internal.R.layout.preference_list_content_single);

            mListFooter = (FrameLayout) findViewById(com.android.internal.R.id.list_footer);

            mPrefsContainer = findViewById(com.android.internal.R.id.prefs);

            mPreferenceManager = new PreferenceManager(this, FIRST_REQUEST_CODE);

            mPreferenceManager.setOnPreferenceTreeClickListener(this);

        }