VPS reinstall: fix resetting features
NAS export add: fix member prefix addition
User add request approval: fix creating default exports for new user
Merge branch 'devel'
Mass management: add mount regeneration
Merge branch 'devel'
IP add/del: shaper-aware
Vps destroy: delete IPs by transaction to remove them from shaper
Add/remove shaper on VPS migration
Transaction for root shaper change
Vps destroy: fix addition of destroy transaction
Implement revival of lazily deleted user accounts
IP registration: set class_id to first available id