* Consistent license message for all the go files
* Fixing the last set of unconsistencies with the license headers
* Addressing PR review comments
* Fixing busy.go and busy_test.go license header
* Unit Tests for model/push_response.go
* Unit tests for security_bulletin.go
* Unit tests for webrtc.go
* Unit tests for model/password_recovery.go
* Add missing headers.
* Unit tests for model/license.go
* Tidy up existing tests.
* Simplify JSON to/from tests.
* Fix gofmt