add gnvm ls --remote framework
add gnvm ls -remote logic
optimize gnvm ls --remote logic
add when http.Get() error logic
add when http.Get() error logic
add when http.Get() error logic
Fixbug of when registry url last bytes not include '/' error
Fixbug of add stateCode not 200 logic
Fixbug of defer res.close()
add try catch by go logic
modify gnvm ls copywritting