Disconnect stream Admin API + HTTP Basic Auth (#204)

* Create http auth middleware

* Add support for ending the inbound stream. Closes #191

* Add a simple success response to API requests

models/baseAPIResponse.go

@@ -0,0 +1,7 @@
+package models
+
+// BaseAPIResponse is a simple response to API requests.
+type BaseAPIResponse struct {
+	Success bool   `json:"success"`
+	Message string `json:"message"`
+}