Bugfix: Don't Start Server Right Away (#40)

This MR simplifies the plugin quite a bit by only attempting to start the Go server after you specifically try to run a command. This streamlines working on feature branches and removes the need for a `base_branch` property entirely.

cmd/main.go

@@ -25,7 +25,7 @@ func main() {
 	var c Client
 
 	if err := c.init(branchName); err != nil {
-		log.Fatalf("Failure: Failed to initialize client: %v", err)
+		log.Fatalf("Failed to initialize Gitlab client: %v", err)
 	}
 
 	m := http.NewServeMux()