Port most of the HTTP code over to gin

server/power.go

@@ -0,0 +1,12 @@
+package server
+
+type PowerAction struct {
+	Action string `json:"action"`
+}
+
+func (pr *PowerAction) IsValid() bool {
+	return pr.Action == "start" ||
+		pr.Action == "stop" ||
+		pr.Action == "kill" ||
+		pr.Action == "restart"
+}