* tests: don't run crowdsec if not necessary
* make listen_uri report the random port number when 0 is requested
* move apiserver.getTLSAuthType() -> csconfig.TLSCfg.GetAuthType()
* move apiserver.isEnrolled() -> apiclient.ApiClient.IsEnrolled()
* extract function apiserver.recoverFromPanic()
* simplify and move APIServer.GetTLSConfig() -> TLSCfg.GetTLSConfig()
* moved TLSCfg type to csconfig/tls.go
* APIServer.InitController(): early return / happy path
* extract function apiserver.newGinLogger()
* lapi tests
* update unit test
* lint (testify)
* lint (whitespace, variable names)
* update docker tests
* Allow to disable remote lapi registration
* Extract method and make it extendable as a generic middleware
* Change method name so it make sense to read abort remote if <config>
* golint
* add the last_heartbeat field
* add heartbeat controller
* add endpoint of heartbeat
* heartbeat integration
* add last_heartbeat to cscli machines list
