spec: add kvm box for test Vagrantfile

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
spec: Vagrantfile: fix warning of apt

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
spec: update Vagrantfile comment

- add description of KVM nested virtualization
- add comment for box image for kvm

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
change box url

- Vagrant downloads error with cacert.org certification
- Placed on AWS S3

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
Document: run vagrant-kvm spec on vagrant-kvm.
Add missing packages

-redir
-should install qemu before libvirt.

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
remove box comment

- Vagrant now only support ruby2.0 and after.
  We should use distro version with ruby 2.0.

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
README: spec example and Ruby2.0

- change spec run example as same as travis.yml
- add description about target Ruby version 2.0

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
change development kvm box url

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
Merge pull request #136 from miurahr/support_test_on_kvm

Add Support test on kvm