adjust nodehandle.go order
remove comment source
change NpmInstall to InstallNpm
remove xxx.Exec method
change nodehandle.VerifyNodeVersion to util.VerifyNodeVersion
change nodehandle.GetTrueVersion to nodehandle.TransLatestVersion
add curl.ReadLine method
change nodehandle.LSRmote use curl.ReadLine
change nodehandle.InstallNpm use curl.ReadLine
remove old source
Merge branch 'feature/optimize-gnvm-framework' into develop