KVM provider: Fixed undef method
KVM provider: Fixed Windows support

* fixed adding of floppy drive to KVM machines
* support for adding virtio drivers to KVM machines
Merge branch 'master' of git://github.com/jedi4ever/veewee into kvm-windows
KVM Provider

- improved code structure
KVM Provider

- improved checking of network and storage pool during creation of servers
- replaced not properly implemented KVM options with one option for the network name and one for the storage pool name
- replaced all occurrences of direct libvirt usage with fog.io in create
- improved documentation to reflect the changes above
Merge branch 'master' of git://github.com/jedi4ever/veewee into kvm-windows

Conflicts:
	doc/kvm.md
Merge branch 'master' of git://github.com/jedi4ever/veewee into kvm-windows

Conflicts:
	doc/kvm.md
Merge pull request #465 from ffeldhaus/kvm-windows

KVM provider: Fixed Windows support