Require pathname

Fixes error using Pathname:

````
/var/lib/gems/1.8/gems/mccloud-0.0.13/lib/mccloud.rb:10:in `source_root': uninitialized constant Mccloud::Pathname (NameError)
        from /var/lib/gems/1.8/gems/mccloud-0.0.13/lib/mccloud.rb:15
        from /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
        from /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require'
        from /var/lib/gems/1.8/gems/mccloud-0.0.13/bin/mccloud:2
        from /var/lib/gems/1.8/bin/mccloud:19:in `load'
        from /var/lib/gems/1.8/bin/mccloud:19
````
Merge pull request #15 from Limecraft/libvirt

Libvirt
show private ip address in vm list
Merge branch 'libvirt' of github.com:jedi4ever/mccloud into libvirt
Merge remote-tracking branch 'cwarden/require-pathname' into windows-fixes
Merge pull request #11 from cwarden/require-pathname

Require pathname
update net-ssh dependency to ~> 2.2.2 for Chef => 0.10.10 compatibility
Merge pull request #16 from tknerr/net-ssh-update

update net-ssh gem for Chef compatibility
GH-23: add omnibus installer bootstrap script (chef only)
Merge pull request #25 from tknerr/omnibus-bootstrap

Chef Omnibus Installer Bootstrap Script
GH-26: relax thor version constraint
Merge pull request #27 from tknerr/libvirt

GH-26: relax thor version constraint
initialialize chef_solo with empty cookbooks and fix tempfile problem
added role and databags support
allow override of chef log_level
allow different bootstrap_user
add pseudo terminal for background and not for foreground
add support for password bootstrapping
relaxed fog version
Use SSL to fetch Chef Omnibus install.sh