add DownloadFragmentHandle

update sdk, version (#191)

update sdk and config tmpl (#166)

Inter 076 (#132)

* add /404

* add eth sign

Update README.md (#131)

adapt to v0.7.8 of snode (#124)

update readme and version (#122)

Update README.md (#116)

Update system.go (#109)

Base auth2 (#104)

* update process file

* update sdk

* update storageData