when user select a machine(qemux86), web server will send machine information user selected to bitbake server by helper restful interface,bitbake server in processing request will trigger many of events and send logs back to web server,web server stores logs into db and returns the result to client.
after select available machine,start to parse recipe,display progress bar and recipe list.
Webhob feature has changed, the feature will be abandoned.
remove it.