Add dummy strings to prevent aapt warnings

<?xml version="1.0" encoding="utf-8"?>

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     Copyright (C) 2014 The CyanogenMod Project

     Licensed under the Apache License, Version 2.0 (the "License");

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<resources>

    <!-- Dummy strings to prevent aapt warnings -->

    <string name="category_printers"></string>

    <string name="cell_broadcast_settings_summary"></string>

    <string name="experimental_webview"></string>

    <string name="experimental_webview_summary"></string>

    <string name="location_category_app_settings"></string>

    <string name="nfc_payment_ask"></string>

    <string name="print_services_title"></string>

    <string name="process_stats_ram_use"></string>

    <string name="wifi_display_autonomous_go"></string>

    <string name="wifi_display_available_devices"></string>

    <string name="wifi_display_certification_heading"></string>

    <string name="wifi_display_disconnect_text"></string>

    <string name="wifi_display_disconnect_title"></string>

    <string name="wifi_display_listen_channel"></string>

    <string name="wifi_display_listen_mode"></string>

    <string name="wifi_display_operating_channel"></string>

    <string name="wifi_display_paired_devices"></string>

    <string name="wifi_display_pause"></string>

    <string name="wifi_display_resume"></string>

    <string name="wifi_display_search_for_devices"></string>

    <string name="wifi_display_searching_for_devices"></string>

    <string name="wifi_display_session_info"></string>

    <string name="wifi_display_settings_empty_list_wifi_display_disabled"></string>

    <string name="wifi_display_settings_empty_list_wifi_display_off"></string>

    <string name="wifi_display_status_available"></string>

    <string name="wifi_display_summary_disabled"></string>

    <string name="wifi_display_summary_off"></string>

    <string name="wifi_display_summary_on"></string>

    <string name="wifi_display_wps_config"></string>

    <string name="wimax_settings_summary"></string>

</resources>