made RabbitMQ behavour by default
updated knplabs/github-api package
trying to fix composer.lock
moved "findOneByName" to parent class
defined OrganizationRepository as a service
used ArrayCollection method instead of simply ArrayAccess approach
added GihubDeveloper::getOrganizations
added "updateMembers" param,
to be able skip fething organization members
tuned "DeveloperUpdaterPlain" service,
to update Developer organizations as well as its own information