add back rZ about, info, quick links

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 Changes to be committed:
	new file:   res/drawable-hdpi/ic_settings_home.png
	new file:   res/drawable-hdpi/ic_settings_lmtpie.png
	new file:   res/drawable-hdpi/ic_settings_themes.png
	new file:   res/drawable-mdpi/ic_settings_home.png
	new file:   res/drawable-mdpi/ic_settings_lmtpie.png
	new file:   res/drawable-mdpi/ic_settings_themes.png
	new file:   res/drawable-xhdpi/ic_settings_home.png
	new file:   res/drawable-xhdpi/ic_settings_lmtpie.png
	new file:   res/drawable-xhdpi/ic_settings_themes.png
	modified:   res/values/strings.xml
	modified:   res/xml/device_info_settings.xml
	modified:   res/xml/settings_headers.xml
	modified:   src/com/android/settings/DeviceInfoSettings.java