a global demo user
Merge branch 'master' of https://github.com/corso-python-prato/share-system-team1
Merge branch 'master' of https://github.com/corso-python-prato/share-system-team1
test_files_get with global demo user
Merge branch 'master' of https://github.com/corso-python-prato/share-system-team1
Merge branch 'master' of https://github.com/corso-python-prato/share-system-team1