Fix Spanish

Small adjust line 2493, appeared in Spanish "DÍas" = "DÍas" with Í capital letter, but the right is  "Días" = "Días" with í lowercase

Author: laureanoendeiza

compiled/flipclock.js

@@ -2490,7 +2490,7 @@ var FlipClock;
 
 		'years'   : 'Años',
 		'months'  : 'Meses',
-		'days'    : 'DÍas',
+		'days'    : 'Días',
 		'hours'   : 'Horas',
 		'minutes' : 'Minutos',
 		'seconds' : 'Segundo'