Add Spanish Translation

plugins/MergerSite/languages/es.json

@@ -0,0 +1,5 @@
+{
+	"Add <b>%s</b> new site?": "¿Agregar <b>%s</b> nuevo sitio?",
+	"Added <b>%s</b> new site": "Sitio <b>%s</b> agregado",
+	"Site deleted: <b>%s</b>": "Sitio removido: <b>%s</b>"
+}