[opennebula] Added several mocks for fit live testing
[opennebula] fixed indentation and changed string interpolation
[opennebula] typo in raise
[opennebula] interface model: attributes are nil by default; added persisted?
[opennebula] network model: removed default definition of attribute description
[opennebula] fixed indentation
[opennebula] VNC console cleanup
[opennebula] fixed indentation
[opennebula] interface model: added method persisted?
[opennebula] server model: comments and rename of methods (for compability to foreman)
[opennebula] removed opennebula dependecies
[opennebula] gemspec: moved opennebula to  development_dependency
[opennebula] fixed indentation