define english, french, and spanish labels for whiteboard app

customize.dist/translations/messages.es.js

@@ -11,6 +11,7 @@ define(function () {
     out.type.code = 'Código';
     out.type.poll = 'Encuesta';
     out.type.slide = 'Presentación';
+    out.type.whiteboard = 'Pizarra';
 
     out.updated_0_common_connectionLost = "<b>Connexión perdida</b><br>El documento está ahora en modo solo lectura hasta que la conexión vuelva.";
     out.common_connectionLost = out.updated_0_common_connectionLost;

customize.dist/translations/messages.fr.js

@@ -10,6 +10,7 @@ define(function () {
     out.type.poll = 'Sondage';
     out.type.slide = 'Présentation';
     out.type.drive = 'Drive';
+    out.type.whiteboard = "Tableau Blanc";
 
     out.button_newpad = 'Nouveau document texte';
     out.button_newcode = 'Nouvelle page de code';

customize.dist/translations/messages.js

@@ -10,6 +10,7 @@ define(function () {
     out.type.poll = 'Poll';
     out.type.slide = 'Presentation';
     out.type.drive = 'Drive';
+    out.type.whiteboard = 'Whiteboard';
 
     out.button_newpad = 'New Rich Text pad';
     out.button_newcode = 'New Code pad';