Using groups simplifies the administration of multiple accounts by
letting you assign settings once to a group, instead of multiple
times to each individual user.
Signed-off-by: Nicola Murino <nicola.murino@gmail.com>
SFTPGo is now fully auditable, all fs and provider events that change
something are notified and can be collected using hooks/plugins.
There are some backward incompatible changes for command hooks
