PLT-350 allow ability to disable restricted team names

utils/config.go

@@ -182,6 +182,7 @@ func getClientProperties(c *model.Config) map[string]string {
 
 	props["SiteName"] = c.TeamSettings.SiteName
 	props["EnableTeamCreation"] = strconv.FormatBool(c.TeamSettings.EnableTeamCreation)
+	props["RestrictTeamNames"] = strconv.FormatBool(*c.TeamSettings.RestrictTeamNames)
 
 	props["EnableOAuthServiceProvider"] = strconv.FormatBool(c.ServiceSettings.EnableOAuthServiceProvider)