Update Catalan.lang

Added new translations and improve current translation.

i18n/Catalan.lang

@@ -2,23 +2,35 @@
  * Catalan translation
  *  @name Catalan
  *  @anchor Catalan
- *  @author Sergi
+ *  @author Sergi, Oriol Roselló
  */
 
 {
-	"sProcessing":   "Processant...",
-	"sLengthMenu":   "Mostra _MENU_ registres",
-	"sZeroRecords":  "No s'han trobat registres.",
-	"sInfo":         "Mostrant de _START_ a _END_ de _TOTAL_ registres",
-	"sInfoEmpty":    "Mostrant de 0 a 0 de 0 registres",
-	"sInfoFiltered": "(filtrat de _MAX_ total registres)",
-	"sInfoPostFix":  "",
-	"sSearch":       "Filtrar:",
-	"sUrl":          "",
+        "sProcessing":    "Processant...",
+	"sLengthMenu":    "Mostra _MENU_ registres",
+	"sZeroRecords":   "No s'han trobat registres",
+	"sEmptyTable":    "No hi ha cap dada disponible en aquesta taula.",
+	"sInfo":          "Mostrant del _START_ al _END_ d'un total de _TOTAL_ registres",
+	"sInfoEmpty":     "No hi ha registres disponibles",
+	"sInfoFiltered":  "(filtrat de _MAX_ registres)",
+	"sInfoPostFix":   "",
+	"sSearch":        "Cerca:",
+	"sUrl":           "",
+	"sInfoThousands": ".",
+	"sLoadingRecords": "Carregant...",
 	"oPaginate": {
 		"sFirst":    "Primer",
 		"sPrevious": "Anterior",
 		"sNext":     "Següent",
 		"sLast":     "Últim"
 	}
+        "oAria": {
+                "sSortAscending":  ": Activa per ordenar la columna de manera ascendent",
+                "sSortDescending": ": Activa per ordenar la columna de manera descendent"
+        },
+        "buttons": {
+	        "print":  "Imprimeix",
+                "copy":   "Copia",
+                "colvis": "Columnes"
+        }
 }