Implement VPS reinstall
Implement VPS nameserver change
Implement VPS hostname change
Implement VPS passwd
VPS passwd: fix class name
Shaper commands
Gemfile: use rubygems over https
Shaper, Vps: ruby 1.8.7 compatibility
Node: include Utils::Zfs
Implement dataset snapshot
Implement dataset branching
Implement dataset transfers
Command class resolving: make it compatible with ruby 1.8.7