BSD License added
Update README.md
Update LICENSE
Propagate licence added to upstream project.

Merge branch 'master' of https://github.com/michaljemala/cf-service-broker into add-licence

Conflicts:
	README.md
	rabbitmq/admin.go
	rabbitmq/service.go
Add new authors in line with original AUTHORS file.
Merge pull request #1 from FreightTrain/add-licence

Propagate upstream licence