adding Notification tests
adding custom exceptions for logger/queue errors
fixing bad exception names in Email class
Adding PSR-3 methods to the MockLogger
fixing Manager test to correctly use a \Expose\Log object
updating Manager class to remove Mongo log defaults and move out to the Log class
adding namespace to Queue test
adding new Logging structure
updating docs for queue/logging changes
update to require the queue settings instead of defaulting to the local Mongo