Refactoring api to use translations (chunk 1)

- Add spanish translations
- Files in order by name from admin to export
- Does not include api templates and tests
- Fix web_test to load translations
- Fix i18n to fallback to DEFAULT_LOCALE if no system locale found

web/web_test.go

@@ -22,6 +22,7 @@ var URL string
 func Setup() {
 	if api.Srv == nil {
 		utils.LoadConfig("config.json")
+		utils.InitTranslations()
 		api.NewServer()
 		api.StartServer()
 		api.InitApi()