LPS-37490 Create a registry to manage all MessagingConfigurators
LPS-37490 For all new registries, trying to follow pattern from BackgroundTaskStatusRegistry for method names
LPS-37502 Change limit values for delta. These values have been calculated as the average value of 20 executions (see http://issues.liferay.com/browse/LPS-37502)
LPS-37502 SF