Messages: try to fix API message handling

Passed timeout for messeages an popup's fired by yWeb API was not really
ok.
For popups now we have a setting with default value of 6 seconds timeout
Popups fired with ShowHint() use this as default. Value of 0 and -1
are ignored.
Messages fired with ShowMsg() should be fixed and interpret
value 0 or -1 as no timeout and will remain on the screen.

src/system/locals.h

@@ -2433,6 +2433,7 @@ typedef enum
 	LOCALE_TIMING_INFOBAR_RADIO,
 	LOCALE_TIMING_MENU,
 	LOCALE_TIMING_NUMERICZAP,
+	LOCALE_TIMING_POPUP_MESSAGES,
 	LOCALE_TIMING_VOLUMEBAR,
 	LOCALE_TMDB_API_KEY,
 	LOCALE_TMDB_ENABLED,

src/system/locals_intern.h

@@ -2433,6 +2433,7 @@ const char * locale_real_names[] =
 	"timing.infobar_radio",
 	"timing.menu",
 	"timing.numericzap",
+	"timing.popup_messages",
 	"timing.volumebar",
 	"tmdb.api_key",
 	"tmdb.enabled",

src/system/settings.h

@@ -405,6 +405,7 @@ struct SNeutrinoSettings
 		TIMING_VOLUMEBAR	= 6,
 		TIMING_FILEBROWSER	= 7,
 		TIMING_NUMERICZAP	= 8,
+		TIMING_POPUP_MESSAGES	= 9,
 
 		TIMING_SETTING_COUNT
 	};
@@ -873,7 +874,8 @@ const time_settings_struct_t timing_setting[SNeutrinoSettings::TIMING_SETTING_CO
  	{ 6,	LOCALE_TIMING_INFOBAR_MOVIEPLAYER},
  	{ 3,	LOCALE_TIMING_VOLUMEBAR   },
 	{ 60,	LOCALE_TIMING_FILEBROWSER },
-	{ 3,	LOCALE_TIMING_NUMERICZAP  }
+	{ 3,	LOCALE_TIMING_NUMERICZAP  },
+	{ 6,	LOCALE_TIMING_POPUP_MESSAGES}
 };
 
 // lcdd