add /etc/default/libvirt-bin generation for debian system.

M

add default parameters for default libvirt-bin.

M

Move debian default initialization in template.

M
Initial configuration of qemu.conf
[#18] - Prepending 'qemu_'  to qemu specific class parameters
[#18] - Added example in README.md file
Add a type to manage pools.
XML are generated using rexml and pass to virsh.
Update Readme.

M
Merge pull request #16 from msimonin/libvirt_pool_rexml

Add a type to manage storage pools.
Merge pull request #17 from igalic/fix-tests

Fix tests
Merge pull request #18 from luisfdez/feature/qemu-config

Initial configuration of qemu.conf
Merge pull request #15 from msimonin/debian_default

add /etc/default/libvirt-bin generation for debian system.
Cosmetic clean ups
Update ChangeLog
add support for IPv6 in libvirt::network

as of yet this only supports IPv6 address, not routes. But then again
we don't support IPv4 routes yet either ;)

We also add spec tests as per class and README documentation.
adapt spec_helper_system to work w/o version

make the code just a *little* prettier.
rspec-system test to cover the new ipv6 feature
add option to manage install of radvd package