PLT-1800 Load server side locale from the config.json (#3076)

* PLT-1800 Load server side locale from the config.json

* Add support for locales with country specifics

api/apitestlib.go

@@ -30,7 +30,7 @@ type TestHelper struct {
 func SetupEnterprise() *TestHelper {
 	if Srv == nil {
 		utils.LoadConfig("config.json")
-		utils.InitTranslations()
+		utils.InitTranslations(utils.Cfg.LocalizationSettings)
 		utils.Cfg.TeamSettings.MaxUsersPerTeam = 50
 		utils.DisableDebugLogForTest()
 		utils.License.Features.SetDefaults()
@@ -50,7 +50,7 @@ func SetupEnterprise() *TestHelper {
 func Setup() *TestHelper {
 	if Srv == nil {
 		utils.LoadConfig("config.json")
-		utils.InitTranslations()
+		utils.InitTranslations(utils.Cfg.LocalizationSettings)
 		utils.Cfg.TeamSettings.MaxUsersPerTeam = 50
 		utils.DisableDebugLogForTest()
 		NewServer()

api/user.go

@@ -239,6 +239,7 @@ func CreateUser(user *model.User) (*model.User, *model.AppError) {
 	}
 
 	user.MakeNonNil()
+	user.Locale = *utils.Cfg.LocalizationSettings.DefaultClientLocale
 
 	if result := <-Srv.Store.User().Save(user); result.Err != nil {
 		l4g.Error(utils.T("api.user.create_user.save.error"), result.Err)